Working by laser beam, e.g. welding, cutting, boring (B23K26)

B23K26/03 - Observing the workpiece(14)
B23K26/067 - (15)
B23K26/073 - (10)
B23K26/10 - Using a fixed support(1)
B23K26/22 - Spot welding(2)
B23K26/24 - Seam welding(5)
B23K26/26 - Of rectilinear seams(8)
B23K26/28 - Of curved planar seams(7)
B23K26/36 - Removing material(31)
B23K26/38 - By boring or cutting(69)

ethod and device for holes making in part using laser pulses // 2628503
FIELD: physics.SUBSTANCE: defining multiple values of working parameters of the laser generator to run a predetermined diameter of holes in the detail. Defining resonator laser temperature set value depending on the characteristics of the generator running holes and/or material details which perform holes, and regulate the temperature of the resonator on this specified value during the holes making time. The device comprises a laser generator comprising a resonator, in which a solid rod for generating laser pulses is mounted, a cooling system of the resonator by circulating the cooling fluid adjacent to or inside the resonator and a means for controlling the laser operating parameters. The device contains means of automatic temperature control at the specified value generator resonator depending on the characteristics of running holes by changing flow and/or temperature of cooling fluid medium.EFFECT: geometry of the holes is improved.10 cl, 6 dwg

Application of superflowing with application of powder flux and metal // 2627824
FIELD: metallurgy.SUBSTANCE: powder layer (14) disposed on the substrate (12) of the superalloy containing flux material and metal material is heated energy beam (16) for forming the cladding layer (10) and of a superalloy layer (18) of the slag. Give the molten bath to cool and solidify to form a slag repaired surface of the desired superalloy material. Material is fed in the form of a superalloy wire or strip into the molten bath. Filler material contains only a subset of the extrudate from the elements defining the desired superalloy material. Extruding the filler material in the form of wire or tape may be, for example, nickel, nickel-chromium alloy or nickel-chromium-cobalt.EFFECT: improvement of the application of technology.10 cl, 6 dwg

Device connecting steel pipe ends by orbital welding // 2627066
FIELD: technological processes.SUBSTANCE: device consists of guide supports installed on both sides of respective pipe ends in the welding zone and rigidly clamped. The guide supports have an annular recess in the center with a radial bore for passing through and aligning weld pipes. Clamp members for clamping the guide supports with the pipe ends are solidly connected to the respective outer sides of the guide supports diverted from the weld groove. A frame for accommodating welding and test tools adapted for orbital movement around the weld groove is installed to pivot on the weld groove facing inner sides of the guide supports and to rotate at least 360° around the pipe ends.EFFECT: improved quality of welded connection.10 cl, 3 dwg
ethod of manufacturing one-dimensional diffraction phase grating with sinusoidal profile // 2626734
FIELD: physics.SUBSTANCE: method of manufacturing a one-dimensional diffraction phase grating with a sinusoidal profile consists in sequentially forming grooves by scanning with a pulsed laser beam of the plate contact plane of fused quartz with a plate of pressed graphite. The interruption of scanning after completion of the groove formation with a period corresponding to the grating period, which is provided by the discrete displacement of the focused laser beam, the depth of the groove relief profile being formed with an energy dependent on the pulsed power density, pulse duration, the diameter of the impact area, the number of pulses, the repetition rate, the scanning speed. The surface of the grating is cleaned by wet laser cleaning.EFFECT: reducing the groove shape deviation from the sinusoidal profile along the entire length of the groove, reducting the deviations in the form of the groove from groove to groove within the diffraction phase grating, eliminating microcracks surrounding the grooves, expanding the depth range of the diffraction phase grating.13 dwg

ethod of laser processing non-metallic plates // 2624998
FIELD: physics.SUBSTANCE: method for laser processing the non-metallic plates is proposed, consisting in measuring the plate thickness h and the absorption index χ of the plate material at the wavelength of the laser radiation, in calculating the dimensionless parameter χh and subject to χh<4 of the initial laser beam separation into two beams of equal energy and simultaneously acting on both surfaces of the plate with the energy density determined by the equation relating the annealing temperature of the plate, its initial temperature, specific heat and density of the plate material, the reflection coefficient of the plate material, the thickness of the plate and the absorption index of the plate material at the wavelength of the laser radiation. The condition for the thermal resistance of the plate is preliminarily calculated and, if it is not fulfilled, before the laser pulse, the plate is heated to a temperature that depends on the thickness of the plate, the mechanical, thermal, and optical properties of the plate material.EFFECT: eliminating the destruction of plates by thermoelastic stresses during processing and increasing yield of the suitable plates.2 dwg

Localized repair of the component from superalloy // 2624884
FIELD: metallurgy.SUBSTANCE: method includes removing the component from service, removing the damaged part of the component to open the repair surface, covering the repair surface with a layer of powder including the superalloy material and flux, exposing the surface of the formed powder layer to the selected portion, and forming a structured first layer of superalloy material, attached to the surface to be repaired and covered with a layer of slag, removing the slag layer from the first layer of superalloy material A, coating at least the first layer of superalloy material with an additional amount of said powder, exposing the energy ray to an additional amount of powder to produce a second layer of superalloy material attached to the first layer and covered with a subsequent layer of slag, removing the subsequent slag layer. Repeat these steps coatings, exposure to and disposal until the superalloy material layers do not form part of the new component to replace the damaged portion, and a return component in operation. Component is a stationary or mobile gas turbine blade, and the damaged portion - honeycomb seal or end seal of the blade.EFFECT: invention allows clad, join or repair more difficult weldable superalloy materials.10 cl, 10 dwg
ethod for laser cladding // 2624747
FIELD: physics.SUBSTANCE: alloy powder on the hydraulic strut surface, is melted with a laser beam emitted from the semiconductor laser, so that the layer cladded by the laser, is formed. The semiconductor laser is a laser that operates with the semiconductor material as an active medium and emitting through the semiconductor material transition between the energy bands.EFFECT: increasing the efficiency of the laser beam energy absorption, that reduces the energy consumption during processing.7 cl

ethod of laser material processing (versions) // 2624568
FIELD: physics.SUBSTANCE: method includes the material direction focused lens of laser radiation with concurrent gas flow gas supply openings under the bottom surface of the lens and the nozzle area processing. Prior to focusing, the laser radiation is collimated. The gas flow is supplied to the central part of the lens or the protective glass placed under it by at least one series of focusing lens inclined to the optical axis and symmetrically located gas distribution holes. The central part of the lens or the protective glass placed under it, which is influenced by gas jets, is at least equal to the diameter of the laser radiation beam passing through them. Laser collimation telescope exercise through its negative and positive lens, floating along the optical axis.EFFECT: increase the effectiveness of laser processing and machining quality by adjusting the laser power density in the treatment area, cooling and effective prevention of pollution and damage to the lens products and other small particles from the workpiece.6 cl, 4 dwg

Alloyed sheets production method // 2624293
FIELD: metallurgy.SUBSTANCE: method of production alloyed sheet product includes fusing of one surface of the stock (10) of strip-shaped sheets (for example, a continuous diaper), where (in which) many sheets are stacked in the foot in contact with supporting element (21), which has parts (27) for the light passage, through which a laser beam (30) can pass. The irradiation of laser beam (30) is carried out with a wavelength that is absorbed by sheets forming sheet stock (10), and causes heat generation by sheets of squeezed stock (10) of strip-shaped sheets through parts (27) for light passage from support element (21). Stock (10) of strip-shaped sheets is divided into parts with simultaneous alloying of cut edges of squeezed plurality of sheets formed by splitting to form a tightly bonded edge (4) (side seam). The edges of the sheets plurality are alloyed in a state where the sheets are stacked on top of each other in the stock and their cut edges are squeezed. Using the method of the invention, a bound sheet product, such as absorbing product. The device for producing alloyed sheet product contains basic components for implementing the operations of the invention method.EFFECT: necessary quality and integrity are provided in alloying sheet edge portions and production absorbing products, which in contact with the user's skin provide a soft texture.15 cl, 26 dwg, 1 tbl
Processing method of titanium alloys drill pipes threaded joint // 2624274
FIELD: metallurgy.SUBSTANCE: processing method includes the laser irradiation of the threaded part of the drill pipes, then provide the wear-in of the threaded pipe sections through its circular screwing together - unscrewing. The tightening torque at screwing is set within 90-110% from the pipes maximum operational load, and the number of cycles is set within 5-10.EFFECT: using of the invention helps to reduce the friction and adhesion properties of the drill tools threaded joints.1 cl
Parts manufacturing method by layer laser alloying of heat-resistant alloys based on nickel metallic powders // 2623537
FIELD: metallurgy.SUBSTANCE: powder layer applying on the substrate, forming the first layer of the part by selectively alloying the powder with the laser beam, reexecution of the above mentioned operations to form the subsequent part layers. It is carried out the hot isostatic pressing in the argon medium and the heat treatment of the obtained part. The metal powder of the chromium heat resistant nickel based alloy is preliminarily subjected to gasdynamic separation with further degassing. The process of the powder alloying with the laser beam is carried out in the protective nitrogen atmosphere. Before hot isostatic pressing, the part and titanium or titanium alloy chips are placed in the electrocorundum medium, in such a way that the part and the mentioned chips are not contacted.EFFECT: manufacturing of parts with low porosity, roughness and content of harmful oxygen impurity, as well as with high mechanical properties.5 cl, 3 tbl, 2 ex

ethod of determining the spatial position of the infrared radiation beam // 2621477
FIELD: physics.SUBSTANCE: method includes forming an infrared beam with the aid of a first optical system comprising an infrared laser, an infrared transparent light guide, a convex and concave spherical mirror. In addition, a visible radiation beam is formed by a second optical system including a visible-range laser, a transparent fiber in the visible region, a convex and concave spherical mirror. Next, the infrared and visible beams are combined with a plane-parallel plate with a reflective layer. The plate is placed behind the concave spherical mirror of the first focusing system. The plane-parallel plate and the second optical system are installed with the ability to provide simultaneous and accurate focusing of the beams at a fixed point of the object in such a way that the direction of propagation and aperture of the beams coincide.EFFECT: increasing the accuracy of determining the spatial position of the laser beam in the infrared region of the spectrum.1 dwg

ethod for laser processing cutting inserts made of oxide-carbide ceramics // 2621245
FIELD: physics.SUBSTANCE: method for laser processing the cutting inserts made of oxide-carbide ceramic TiC+MgO+Al2O3, in which the surface of the cutting insert is subjected to the pulsed laser exposure, each pulse train forms a laser beam spot with a certain beam power on the sample with the laser beam spot overlapping ratio in the range of 0.1 to 0.9. Processing is carried out with a pulse repetition rate of 90 to 110 kHz, the number of pulses in the train is more than 60, and the beam power on the sample is of 7 to 8 W. Optimally, when the surface of the cutting insert is subjected to the pulsed laser exposure with the laser beam spot overlapping ratio in the range of 0.5 to 0.75.EFFECT: increasing the durability of the cutting inserts.2 cl, 9 dwg

Treatment of materials by optically transparent slag // 2621095
FIELD: physics.SUBSTANCE: substrate (24) cultivation is carried out during the melt bath crystallization (28) under the (30) melted slag layer. The energy beam (36) is used to melt powder (32) or a hollow wire (42) with a filler (44) of the powdered alloy under the slag layer. The slag layer is, at least, partially transparent (37) for the energy beam, and it can be partially optically absorptive or permeable for the energy beam, to absorb enough energy remaining molten. As in the conventional ESW process, the slag layer insulates the melted material and prevents it from reacting with the air.EFFECT: powder content can be changed along the axis (A) of the resulting part crystallization to provide a functionally gradient directionally-crystallized product.18 cl, 5 dwg, 1 tbl

Device for laser processing and method of laser radiation // 2621092
FIELD: physics.SUBSTANCE: laser irradiation unit is adapted to provide the laser beam intensity distribution focused on the sheet being processed, so as to satisfy the relationship Ib/Ia≤2, where Ra1 and Ra2 - the distances between the intensity distribution centroid and the positions, at which the intensity integration value, obtained from the intensity distribution centroid, is 43% of the total intensity integration value, Ia1 and Ia2 - the intensities of the laser beam corresponding respectively to Ra1 and Ra2, wherein Ia is the mean value of Ia1 and Ia2, and Ib is the beam intensity at the intensity distribution centroid.EFFECT: decreasing the magnetic domain size.15 cl, 13 dwg, 1 tbl

Additive processing method for parts of al-si. system alloys // 2620841
FIELD: metallurgy.SUBSTANCE: invention relates to the additive processing method for parts of Al-Si system alloys and can be used in the engineering industry for manufacture and recovery of small articles and their structural elements, preferably, the transverse dimension in the submillimeter range (less than 1 mm). Layer-by-layer laser powder material cladding is carried out simultaneously with its being fed into the processing zone together with the process gas. Powder material is used with an average particle diameter of 30…40 microns at particles concentration in the process gas stream not more than 0.275 g/mm3.EFFECT: expansion of technological capabilities.3 dwg, 1 ex, 1 tbl

etal surfaces laser surfacing method // 2620520
FIELD: metal processing.SUBSTANCE: invention relates to laser surfacing of metal parts and can be used for reconditioning worn-out surfaces of parts. Heating zone is created at part surface by continuous laser beam and corrosion-erosion resistant self-fluxing filler powder is supplied to fuse it and mix with fused mother material. Soot is added in weight ratio of 1:50 during preparation of filler powder material.EFFECT: during surfacing the filler powder is supplied behind moving surfaced surface.1 cl, 1 dwg

Electric razor // 2620317
FIELD: personal demand items.SUBSTANCE: razor includes a handle (12) and the shaving head (13) adapted to move relative to each other about a pivot axis (16) and/or linear motion along the axis (17). This facilitates movement following the contour of the skin during shaving in order to achieve a close shave. The handle (12) is a laser source emitting a laser beam, and the shaver has an optical system comprising optical elements (23, 25, 26, 37, 40, 42) for directing the laser beam so that it coincides with the axis of rotation (16) and/or parallel to the linear axis of motion (17).EFFECT: use of the invention can improve the quality of shaving.19 cl, 8 dwg
Pulse electron-beam metal product surface polishing method // 2619543
FIELD: metallurgy.SUBSTANCE: product surface with initial roughness is affected by a pulsed beam in vacuum at a pressure of (2-5)⋅10-2 Pa, electron energy of 15-25 keV, pulse durations of 150-200 mcs and energy density in pulse of 40-60 J/cm 2.EFFECT: decreased porosity and roughness of the surface layer of bulk metal products.2 dwg

Non-uniformity correction using successive ablation // 2619368
FIELD: medicine.SUBSTANCE: invention relates to systems and methods for determination of at least one ablation profile for selective removal of material from the splint side portions to correct non-uniformity characteristics of a vulcanized splint, such as lateral force variation. Ablation procedure can be determined for a plurality of grooves along the splint side based on the sensitivity data corresponding to the plurality of grooves. At least one ablation profile can be sequentially determined in accordance with the flow chart set by the ablation procedure.EFFECT: sequential determination of ablation profiles can reduce computational resources required to compute at least one ablation profile, and in some cases may reduce ablation time and total splint ablation, sequential determination of ablation profiles may provide lateral force variation correction to rotate the splint clockwise and counterclockwise.15 cl, 20 dwg, 3 tbl
ethod of laser treatment of article (versions) and device for its implementation (versions) // 2618287
FIELD: technological processes.SUBSTANCE: invention relates to method of laser surfacing on article (versions) and device for its implementation (versions). Surfacing is performed using inert gas and powder filler. According to first version, simultaneously with melting of workpiece surface by laser beam it is subjected to ultrasonic vibrations, electromagnetic or magnetic fields. According to second version, simultaneously with melting of workpiece surface by laser beam it is exposed to electromagnetic or magnetic fields. Device has laser unit, nozzle body and insert with central through channel for laser beam installed in it with annular gap, nozzle for supply of alloying elements in annular gap, additional branch pipe for protective gas supply in central through channel of insert mounted perpendicular to axis of housing, drive system for relative movement of housing relative to surface of table, serving for placement of workpiece on table. According to first version, proposed device comprises ultrasonic generator, electromagnetic antenna, generator of electromagnetic or magnetic fields arranged below outlet of annular gap of housing. According to second version, proposed device comprises electromagnetic antenna, generator of electromagnetic or magnetic fields arranged below outlet of annular gap of housing.EFFECT: technical result consists in improvement of quality of formed coating on article.4 cl, 2 dwg
ethod of image application on precious metals products // 2618283
FIELD: chemistry.SUBSTANCE: spraying is carried out on the film surface of the product from the oxidized metal. Film local heating is performed by laser radiation, followed by plotting of a calibration curve of modified film surface colour dependency on the laser exposure modes. The image is applied by laser radiation in the mode selected by the resulting calibration curve.EFFECT: invention allows to expand possibilities of printing on articles made of precious metals.2 dwg, 1 ex

ethod of laser welding of metal coatings // 2618013
FIELD: physics.SUBSTANCE: method involves feeding a powdery filler material to the surface of the preform and irradiating the filler feed zone with a scanning laser beam. Scanning of the laser beam is carried out in a direction perpendicular to the direction of travel of the beam or workpiece, with a laser beam frequency f = 3-600 Hz and a scanning amplitude A = (3-30) d, where d is the diameter of the laser beam.EFFECT: expansion of the surfacing area and increase in the strength properties of the deposited layer.2 dwg

Device and method for laser cutting with automatic gas pulse control by frequency or by pressure // 2617301
FIELD: process engineering.SUBSTANCE: invention relates to laser cutting with the injection of a purge gas flow to the cutting area for removing slag and gases produced during the cutting process. The purge gas injection into the cutting zone is carried out by means of gas pulse, wherein the intensity of the laser radiation reflected from the cutting zone is measured continuously, and the purge gas flow rate is regulated by changing the frequency, pressure, or both frequency and pressure of the gas pulse, depending on the measured intensity which is maintained at a predetermined minimum.EFFECT: invention use allows to improve the quality of the cutting process.9 cl, 8 dwg

ethod of laser powder protective coating overlaying on the inlet edgs of steam turbines working blades // 2617077
FIELD: metallurgy.SUBSTANCE: invention relates to the method for laser-powder protective coating overlaying on the input edge of steam turbine working blade made of steel of "13Х11Н2В2МФ-Ш", or "15Х11МФ-Ш", or "20Х13" grades. Filler metal and laser radiation are fed to the surface of the leading blade edge. The laser beam is moved on the overlayed surface and an overlay with overlapping zone is formed. The laser beam is moved on the overlayed surface at an angle of 20-80 degrees to the blade edge. When overlaying, the temperature of the leading blade edge from 100 to 250°C is ensured. After overlaying, the blade is cooled at a speed of no more than 50°C/hour.EFFECT: minimization of the temperature deformation of the blade feather in the process of laser-powder overlaying, reduced level of residual stresses in the overlay and the base material, leading to a decrease in the fatigue strength of the part.3 cl, 1 dwg
ethod of colour marking of metal or its alloy surface with laser pulsed radiation // 2616703
FIELD: metallurgy.SUBSTANCE: invention relates to method for colour marking of metal or ita alloy surface with laser pulsed radiation and can be used for treatment of metal surface. Performed is preliminary modification of metal surface with laser radiation with specific power from 10-10 J/(cm2⋅s) to specific power, at which surface acquires black colour, and at various temperatures of impact from metal melting point to metal evaporation temperature. Spectra of reflection of modified areas are measured and used to build calibration curve of reflection coefficients on specific power. Obtained values of dependence of positions of extrema of reflection coefficient on selected parameter are used to calculate reflection spectra, which are located between experimentally measured points. Shift of extrema of reflection coefficients is used to calculate colorimetric characteristics of obtained colours, values of which are used as base for determination of value to respective parameter of laser impact. Limited quantity of discreet values to specific power of laser radiation in building calibration curve of dependence of colour of modified metal or its alloy surface on said values with further measurement of reflection spectra and their analysis with isolation of extrema of reflection coefficients makes it possible to obtain complete colour palette.EFFECT: claimed method aids in obtaining complete colour palette.2 cl, 1 tbl, 3 dwg

achine for laser-arc welding of parts // 2615428
FIELD: metallurgy.SUBSTANCE: machine for laser-arc welding of parts contains a base with a kinematic system of the welding unit movement with an optical laser head and torch installed on the base, as well as the equipment for installing and driving the welded parts. The welding unit is equipped with a device for edge cleaning before welding. The device for cleaning the edges and the torch are mounted to ensure movement and fixation in the predetermined position on the upper and lower half-rings respectively attached to the welding unit. The equipment for installing and driving the welded parts is designed as spindle heads, on the spindles of which part adjusting and fastening devices are mounted.EFFECT: improved quality of welded joints and expanded device functional capabilities.5 dwg
ethod for laser marking of product surface of aluminium or its alloy with oxide outer layer // 2615381
FIELD: physics.SUBSTANCE: formation of the marking visually observed by the human vision is carried out, different from the product surface areas adjacent to the marking, due to changes in the structure compared with the material in the areas adjacent to the marking by the action of laser radiation and subsequent cooling. It is effected by the laser radiation having a wavelength selected from the condition of the radiation absorption by the aluminium oxide without damaging the surface of aluminium or its alloy. Hardening the oxide outer layer is performed by providing the pore closure in the modified and unmodified areas of the oxide outer layer. The oxide layer structure is formed, different from the material in the areas adjacent to the marking in the process of cooling the melt and condensing the evaporated material of the oxide outer layer.EFFECT: hardening the oxide coating of products of aluminium or its alloy, while maintaining the initial surface shape of aluminium or its alloy.11 cl, 2 dwg, 2 ex, 1 tbl

ethod and device for contoured surface formation on steel embossing shaft // 2614502
FIELD: technological processes.SUBSTANCE: invention relates to field of laser processing and can be used for contoured surface formation on steel embossing shaft. Contoured surface formation represents making of macrorelief with elements dimensions of more than 20 mcm and depths of up to 150 mcm inclusively, by laser exposure with following parameters: energy density in single pulses generation mode is equal to 0.5–3.5 J/cm2, average density of energy in pulses packs generation mode is equal to 0.5–70 J/cm2 per pulse, wave length is 532–1,064 nm, pulse repetition frequency is from 1 kHz to 10 MHz, distance between pulses on part is 10–50 % of beam diameter for femtosecond laser and 10–25 % or 40–50 % of beam diameter for picosecond laser, laser beam focal plane is located on part surface, and beam travel speed is equal to or more than 100 m/s.EFFECT: use of invention enables to increase preset relief on embossing shaft production precision.9 cl, 3 dwg

Stringer connecting method with covering by beam welding at stringer panels manufacture // 2614358
FIELD: metallurgy.SUBSTANCE: method includes stringer installing on the collar, performed on the covering at the place of the stringer location, and its weld tack, positioning and clamping of the stringer in the welding area by means of the head with the guide rollers, stringer welding with covering collar simultaneously by two beams, directed from two opposite sides of the stringer and moving along the weld joint of the stringer. Thus the stringer welding from one side is performed by the first beam, providing weld penetration to the depth equal to 0.8-0.9 of the stringer thickness, and from the other striger side the welding by the second beam is performed, providing weld penetration to the depth equal to 0.2-0.3 of the stringer thickness. The first beam is moved in front of the second beam at the distance greater than the length of the welding bath of the first beam.EFFECT: invention improves the quality of stringers welded joints with the increased thickness and stiffness.7 dwg

ethod of metal parts surfacing for aircraft jet turbine engines and local protection tooling for said method implementation // 2612471
FIELD: metallurgy.SUBSTANCE: invention relates to metal parts (301) surfacing method for aircraft turbojet engine and tooling for its implementation. Metal part is set into surfacing (301) position in chamber (201), having upper part (202) with hole (208). Movable cover (221) with hole (222) is installed on hole (208) in chamber upper part (202). Performing nozzle (103) positioning on movable cover (221) hole (222) level. Introducing inert gas into chamber (201). Performing metal powder application on metal part (301), laser beam or electrons beam emission for metal part (301) surfacing, applied powder warming up by said beam with provision of metal part (301) surfacing. During surfacing process performing nozzle (103) movement relative to chamber (201) in accordance with metal part (301) surfacing path, wherein by nozzle (103) displacement performing movable cover (201) movement on chamber (201) upper part (202).EFFECT: result is provision of considerable rectilinear nozzle movement, which enables to cover entire surfacing area, as well as insulation, which prevents fast gas flow from chamber, accordingly preventing part oxidation during surfacing.14 cl, 5 dwg
ethod for application and laser treatment of thermal-protective coating (versions) // 2611738
FIELD: technological processes.SUBSTANCE: invention relates to gas thermal spraying coating, in particular, to methods of sputtering of heat-resistant and heat-protective coatings. Main metal thermal resistant underlayer is applied. Upper ceramic heat-shielding layer is applied, followed by laser treatment. Laser treatment is performed using a laser beam with U-like energy distribution across cross-section. Output power value and speed of scanning of laser beam is set in range of 100–6,000 W and 0.01–1 m/s. In another version, main metal thermal resistant underlayer is applied. Upper ceramic heat-shielding layer is applied, followed by laser treatment. Laser treatment is performed using a laser beam with U-like energy distribution across cross-section. Output power values and laser beam scanning rate are set in range of 100–6,000 W and 0.01–1 m/s. Laser treatment is then carried out with parameters of laser beam, corresponding to previous laser treatment to obtain a coating with given properties.EFFECT: high resistance of heat shielding coating to high temperature effects (thermal resistance and heat resistance), erosion and corrosion by fusion of upper ceramic layer.10 cl, 1 tbl, 1 ex

Laser perforating machine // 2611619
FIELD: optical system; manufacturing technology.SUBSTANCE: invention relates to laser machines for creation of perforations in filters of combined cigarettes formed of two cigarettes with double filter between them. Machine (10) comprises left-side laser beam radiating unit (28), which brings in one point laser beam (BL) supplied to right part (16R) of double filter (16) with formation of perforations (H), inclined to axis of cigarettes (12) with double filter and right-side laser beam radiating unit (30), which brings in one point laser beam (BR), incoming to left part (16L) of double filter (16) with formation of perforations (H), inclined to axis of cigarette (12), when it is located in position of perforation (PP) located on track for transportation.EFFECT: invention provides simplified design of laser perforating machine.8 cl, 12 dwg

ethod of optical processing device unused optical radiation energy recovery, recovery device and optical processing device // 2611608
FIELD: lighting.SUBSTANCE: invention relates to optical processing device (1) unused optical radiation energy recovery method, containing, at least, one light source, in particular, laser radiation source (2) or light source with plurality of light-emitting diodes, optical processing unit (1) for workpiece processing (5) (versions) and recovery device. Method includes stages of: light source actuation, exposure of, at least, one workpiece (5) to electromagnetic radiation (4) for its processing, trapping by recovery device (6, 6a, 6b) radiation trap (7) of, at least, part of electromagnetic radiation (4') not used in workpiece (5) processing, conversion of, at least, part of electromagnetic radiation (4') energy, captured by trap (7), into electric energy (14). Recovery device (6, 6a, 6b) contains radiation trap (7) with cavity (70) and, at least, with one light input opening (71) for electromagnetic radiation (4') input into cavity (70). Recovery device (6, 6a, 6b) absorbents (9) are located inside radiation trap (7) cavity (70) and made with possibility to absorb, at least, part of electromagnetic radiation (4') entering into cavity (70), convert it into thermal energy and heat fluid coolant (12). Thermal engine (10), in particular, steam turbine or Stirling engine, in to which fluid coolant (12) is supplied, is made with possibility of conversion of, at least, part of fluid heat carrier (12) heat energy into mechanical energy (13). Generator (11) is connected with heat engine (10) and made with possibility of conversion of, at least, part of mechanical energy (13) into electric energy (14).EFFECT: recovery of optical processing device unused optical radiation energy.26 cl, 5 dwg

ethod for applying mark onto surface of diamond or cut diamond to determine its authenticity // 2611232
FIELD: security.SUBSTANCE: invention relates to a method of authenticating an article in the form of a diamond or a cut diamond. Identification mark invisible with the naked eye is applied onto a diamond or a cut diamond by exposure to a laser radiation with a wavelength exceeding 500 nm with simultaneous affecting by ultrasound using a tool located on the section surface. After that saved are at least two interference images of the article identification mark by means of a probing radiation with waves of different lengths together with data on location of a certain section of the article and an angle of incidence of the probing radiation. Determination of authenticity and correspondence to the saved values is carried out by directing the probing radiation onto the said section to create at least two interference images of the identification mark, which then are compared with the saved interference images, matching of which denotes the mark authenticity.EFFECT: technical result is ensuring uniqueness of the mark, protection from counterfeiting and reliable identification during authentication.4 cl, 2 dwg, 2 ex

Device and method of cutting by measuring decorative tape paper and use of device for cutting device // 2610498
FIELD: printing.SUBSTANCE: invention reffers to printing and relates to the device and method of cutting to a size of decorative paper tape, and application the device for cutting the tape. The device for cutting the segments of decorative paper tape, that have the coating, includes a flow line with means for decorating and impregnating endless belt paper for converting a ribbon of decorative paper and at least one device for lateral dissolution separating belt lengths decorative paper of a certain length of tape decorative paper . In the feeding direction, before at least one device for transverse dissolution there is at least one device for slitting to separate the decorative paper tape, at least two endless longitudinal tape decorative paper, and at least one deflecting device, which separates the two longitudinal tape relative to one another and leads, respectively, to a separate device for the cross dissolve.EFFECT: invention provides a process of optimization of cutting pieces of decorative paper tape.15 cl, 5 dwg
ethod of cladding and fusion welding of superalloys // 2610198
FIELD: metallurgy.SUBSTANCE: invention relates to welding by fusion of superalloys and can be used for manufacturing and repairing gas turbine engine elements. Base material made of superalloy is coated with a composite filler powder, containing 5–50 wt% brazing powder, which includes melting point depressants, and 50–95 wt% high temperature welding powder. Method includes simultaneous heating base material and composite filler powder to a temperature that will fully melt brazing powder and and at least partially melt high temperature welding powder, and also melt a surface layer to form a weld pool. Weld pool is cooled at rate providing, during crystallisation and cooling, formation of a composite structure, comprising interconnected grid of dendrites with high melting point, obtained from high-temperature welding powder, and formation from high-melting point solder powder, high-temperature welding powder and base material in weld bead of dendritic eutectic matrix. Splicing of weld bead and base material is obtained. Method includes performing post-welding thermal treatment at temperature above temperature of solidus of brazing powder and below temperature of solidus of high-temperature welding powder.EFFECT: technical result is enabling self-healing of cracks during welding and post-welding heat treatment.10 cl, 8 dwg, 3 tbl, 9 ex

ethod of large-diameter pipes welding by laser and hybrid laser-arc welding // 2609609
FIELD: technological processes.SUBSTANCE: invention relates to large-diameter pipes welding method. Performing tack weld with welding torch with simultaneous monitoring over edges joint using scanning sensor located before welding torch. Immediately after tack weld welding performing application of notch onto it by laser beam or mechanical tool, which position is adjusted by means of said sensor. Performing root weld hybrid laser-arc welding by welding head, which position is adjusted relative to joint by said sensor guidance onto produced notch.EFFECT: invention enables to avoid occurrence of inadmissible defects in form of penetrations and edges incomplete fusion in hybrid laser-arc welding welds, which can occur at laser beam deviation from welded joint.1 cl, 1 dwg
ethod of car seat upper skid and slides fastening bracket welding // 2609596
FIELD: machine building.SUBSTANCE: invention relates to method of car seat slides upper skid connection with car seat frame clamping bracket. Method involves longitudinal mounting platform of specified length in fastening bracket base lower surface application on upper flat horizontal surface in upper skid top; application of additional surface mounted plate on horizontal plane lower surface at section, corresponding to mounting platform location; and mounted plate connection, mounting pad and horizontal plane by welding on mounted plate lower surface side.EFFECT: result is enabling high strength of weld joint between car seat upper slides skid and frame clamping bracket at considerable reduction of labor costs for performance of welding works as compared to making weld along mounting pad perimeter.3 cl, 6 dwg

ethod for multilayer deposit welding of monocoque // 2609571
FIELD: physics.SUBSTANCE: invention relates to a method of producing multilayer monocoque and can be used in transportation and aircraft engineering. The layer-by-layer electronic drawing of the monocoque is made. The monocoque is deposit-welded by a laser beam on a substrate, perpendicular to the longitudinal axis of the monocoque, successively layer by layer according to the electronic drawing. Deposit welding using a laser beam is performed using a wire having a square cross-section, a given composition and cross dimension. Deposit welding of the next layer includes partial fusion of interfaced surfaces in the area of the next contact of automatically fed wire and substrate or previously deposit-welded layer so as to enable metallurgical bonding thereof. The laser beam can be continuous or pulsed.EFFECT: invention provides accuracy of laser deposit welding of monocoque due to partial fusion of the deposit-welded sire on the interfaced surface and reduces work on further finishing processing of the monocoque surfaces.2 dwg, 1 ex

ethod for hybrid laser/arc welding and using it method of making welded article // 2608937
FIELD: metal processing.SUBSTANCE: invention relates to a method of hybrid laser/arc welding for butt welding of an article made from stainless steel. In the joint part welding is performed by directing laser radiation and an arc discharge along the same welding line so that the laser welding is followed by TIG arc welding. Focus point of the laser beam for laser welding takes a position above the article to be welded. Laser beam is defocused to the diameter of the laser beam directed at the article to be welded, not less than 1mm. Interval between the laser radiation position at laser welding and the arc discharge position at TIG arc welding ranges from 3 to 7 mm.EFFECT: method of welding increases the speed of welding up to approximately 20 m/min with obtaining a suture with good configurations and without welding defects, such as gas blowholes.8 cl, 5 dwg, 3 tbl, 3 ex

Device for absorption of radiation of optical wavelength range // 2608933
FIELD: physics.SUBSTANCE: invention relates to a device for absorbing radiation in optical wavelength range. Cylindrical housing is open on one side of inner cavity, in which there is a conical element facing by its tip towards input radiation. Housing and conical element are coaxial bodies of revolution. Inner space of housing is a conical cavity which narrows inside housing. Surface of conical cavity and surface of conical element have regular recesses, forming a continuous corrugation of said surfaces. Profile of recesses has a configuration which provides multiple reflection of input radiation at angles deliberately excluding spurious radiation output from device. Housing is made from material with high heat conductivity, and conical element is made of material with low coefficient of linear expansion. Surface of conical cavity of housing and surface of conical element are coated with ammonium molybdate. On external surface of housing there are circular bores for air cooling.EFFECT: higher absorption capacity of device and broader capabilities of its application, including for absorption of radiation of various wavelengths of optical range.3 cl, 3 dwg

ethod of pipe scanning intended for processing at laser cutting machine, using sensor for measuring radiation reflected or emitted by pipe // 2608868
FIELD: pipes.SUBSTANCE: invention relates to pipe scanning method, intended for processing at laser cutting machine. Method includes stages, at which: a) emitting focused laser beam by cutting head (50) of laser cutting machine so, that to prevent pipe material (T) cutting or etching; b) moving cutting head (50) along scanning specified direction (x); and c) during cutting head (50) movement along scanning direction (x) detecting by means of corresponding radiation sensors (56), reflected or irradiated by pipe (T), and install successively point by point, based on signal provided by sensors (56), presence or absence of pipe material (T).EFFECT: invention enables to measure cutting point position on pipe surface regardless of pipe position on laser cutting machine and from pipe shape.6 cl, 8 dwg

Laser nozzle having moving element // 2607889
FIELD: laser engineering.SUBSTANCE: invention can be used in laser cutting, in particular, using a fibre or disc laser. Nozzle (1) housing is made with axial cavity (5), having first outlet hole (11) on front side (1a). Movable element (2) is configured for translational movement in axial cavity (5) in direction of first outlet hole (11) under pressure of gas until front part (2a), forming inner cylindrical wall of movable element (2), does not protrude from axial cavity (5) through first outlet hole (11). Elastic element (8) is located in axial cavity (5) between nozzle housing (1) and movable element (2).EFFECT: elastic element (8) generates elastic return force to movable element (2) and tends to counteract translational movement in axial cavity (5) in direction of first outlet hole (11).11 cl, 4 dwg

ethod of creating structure of article and article produced using said method // 2607750
FIELD: laser engineering.SUBSTANCE: group of inventions relates to a method of creating at least one structure (13, 15) by means of a laser exposure, at least, at one part (11) of a container wall of a plastic article in the form of a container and an article made as described above. Preferably, the article is made by the process of blow molding, filling and closing the container. Corresponding structure (13, 15) of the container is created by the laser exposure. Laser exposure is determined at least considering the laser power, duration of the laser exposure, type of a plastic material and type of the desired structure in the form of linear depression (17) in part (11) of the article wall. Linear depression (17) at its edge and its travel is limited by projection (27), which is created under the effect of inherent stress of the plastic material.EFFECT: technical result achieved when using the group of inventions is reliable implementation of the method and creation of distinctly recognizable structures.10 cl, 9 dwg
ethod for laser separation of rubber and polymer coatings // 2607736
FIELD: technological processes.SUBSTANCE: invention relates to removal of rubber and polymer coatings, glued to surface of various structures. Described method is based on local infrared laser thermal action directly on zone of adhesive layer. Laser beam at rate providing required heating is used to scan adhesive layer in zone of contact of coating and surface of structure. When temperature values reach 60÷150 °C strength of adhesive layer falls by almost an order, that makes it possible to remove a coating layer from surface of structure using an applied tension force.EFFECT: reduced labor input, power consumption, high efficiency of removal of rubber coatings, providing a method which is safe for personnel by avoiding burning of rubber coating.3 cl, 1 dwg

ethod for controlling a laser cutting process and laser cutting system implementing the same // 2607502
FIELD: laser engineering.SUBSTANCE: group of inventions relates to method and a laser cutting system. According to the invention, a laser cutting process is controlled, using as reference signal one or more emission lines, which are characteristic of the radiation, emitted by a assisting gas or a contaminant gas, present in the material volume, irradiated by the laser beam, focussed by laser head (12), based on the detected signal, at least one of the following process control parameters: power of the laser, frequency and the duty cycle of the laser pulse, pressure of an assisting gas, emitted by nozzle (16) forming part of laser head (12), relative speed of laser head (12) with respect to workpiece (P), distance between laser head (12) and surface (S) of workpiece (P), and the distance between focal point (F) of the laser beam and surface (S) of workpiece (P) are being adjusted.EFFECT: technical result is improved quality of laser cutting.12 cl, 12 dwg

Device for laser processing and method for laser processing, containing singlet lens for focusing // 2607500
FIELD: technological processes.SUBSTANCE: invention relates to laser processing method and devices and can be used for material melting, evaporation or cutting under action of laser radiation. In device unfocused light (A) from light output point (B) is emitted on singlet lens (8). Lens (8) focuses laser light (A) and directs it to part (7) processing point. Distance (ma, mb) between lens (8) and light output point (B) and distance (la, lb) between lens (8) and part (7) processing point and distance between light output point (B) and said processing point may vary.EFFECT: wherein, achieved are expanded operating performances of device and method, consisting in processing of parts with various thickness, and higher accuracy of laser processing.40 cl, 6 dwg

Laser radiation retention plant in safe closed space // 2607295
FIELD: machine building.SUBSTANCE: plant includes at least two openings (O1, O2) arranged oppositely on each side, through which at least one metal tape can be drawn, shell containing first and second devices with clamping jaws (M11, M12, M12s, M21, M22, M22s) for tape, arranged on tape drawing path between two openings, wherein said jaws are arranged transversely, at least to tape width, cutting or welding unit head (TL), emitting laser radiation beam in closed space, wherein said beam is transversally movable between pair of jaws (M11, M12) located opposite to one side of tape surface, wherein in jaws compressed position on tape jaws (M11, M12, M12s; M21, M22, M22s) connection on tape surfaces leads to formation of laser radiation physical screen (F1b), preventing radiation passing through two shell openings.EFFECT: higher safety of laser cutting.17 cl, 5 dwg

Shaped part made by laser welding // 2606682
FIELD: metallurgy.SUBSTANCE: invention relates to welding and can be used for fabrication of shaped part in form of steel plates T-connection by laser welding, containing wall and flange arranged perpendicular to each other, welded to wall by its edge part by means of melting with single pass irradiation by laser beam, guided on flange one of surfaces side. Welded area shape in lateral cross section, perpendicular to shaped part longitudinal direction, should be such, that were observed flange melted area width preset dimensions on both sides, wall melted area widths on both sides and wall penetration maximum depth. In case if wall and flange are made in form of plates with galvanic coating, then for such part other conditions for said specified sizes shall be observed.EFFECT: invention provides higher strength of T-shaped welded joint and its corrosion resistance.3 cl, 3 dwg, 12 tbl
 
2550995.
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