Shaping the laser beam, e.g. by masks or multi-focusing (B23K26/06)

Laser optic head // 2641213
FIELD: physics.SUBSTANCE: laser optic head comprises an outer fixed body (1) and an inner movable body (3) with a nozzle (4). The body (3) is moved by means of a rack (6) mounted on the inner movable body (3) and a pinion shaft (5) mounted on the mechanism bracket (16). The mechanism (16) is fixed to the outer fixed body (1) and is connected to an electric drive. In the lower part of the outer fixed body (1), a capacitive sensor (8) is installed to set and control the size between the nozzle cut and the workpiece (9). At the nozzle outlet, there is a removable nozzle (7) with a narrowing-expanding channel at the outlet. For modes of cutting, welding, punching the holes, a removable nozzle (7) is used, which has a diameter in a narrow section of 0.2±0.02 mm and an expansion angle of 30°. For the mode of cutting metal of 20 mm to 40 mm, a removable nozzle (7) is used which has a diameter in a narrow section of 0.5±0.02 mm and an expansion angle of 15°.EFFECT: increased accuracy of processing, economy and versatility of the head.3 cl, 9 dwg
ethod of double-laser welding // 2639200
FIELD: metallurgy.SUBSTANCE: method consists in directing laser beams to the place of welding and performing welding in an inert gas environment. The laser beams are focused to one optical system, and after that the laser beams are directed to the place of welding through the focal lens. A continuous laser during welding is turned on and off with a delay relative to the pulsed laser.EFFECT: invention allows to obtain high-quality welded seam at welding of aluminium alloys and difficult-to-weld structure steels by increasing the depth of penetration for more than 2 times and weld details of a complex geometry.6 dwg, 1 tbl, 3 ex

Emitter // 2635651
FIELD: physics.SUBSTANCE: groups of light sources generate light for processing the object, with groups of light sources being represented in the working plane (17) by means of the image forming unit (16) to obtain the processing light. The resulting intensity distribution is configured in such a way that if the intensity distribution is integrated in the spatial integration direction, the resulting distribution of the integrated intensity has a decrease in intensity. One or more groups of light sources are controllable independently of other groups of light sources to modify the integrated intensity distribution. This allows to use the emitter in the processing device perpendicular to the processing line, along which the object is to be processed, in particular, it must be sealed, the object can be processed relatively uniformly.EFFECT: improving the quality of object processing.11 cl, 19 dwg

ethod for generating laser radiation in generator-amplifier system on metal vapour // 2634371
FIELD: physics.SUBSTANCE: according to the method for generating radiation in a laser generator-amplifier system of a metal-vapor, comprising an oscillator with an optical resonator and an amplifier made on active metal-vapor laser cells, spatial filtering of the generator radiation is performed with a spatial filter, an opaque plate is placed in the focal plane of the filter and an opening is formed in it by means of the generator's own radiation.EFFECT: generating laser radiation in the generator-amplifier system at the level of diffraction divergence, reducing the system dimensions, reducing the complexity of manufacturing the diaphragm and its alignment.2 cl, 3 dwg

ulti-beam laser radiation source and device for handling materials with its use // 2632745
FIELD: physics.SUBSTANCE: multiple-beam source consists of a generator and a multi-channel amplifier. Radiation generator comes to the input of the amplifier via the Extender, and then hardened individual fragments of a wide beam of the active element, consisting of laser plates located successively in several parallel ranges. Each plate contains elongated along the longitudinal axis of the plate at the heart of the active material and surrounding it with the side of a dormant shell. The space between all the plates is filled with heat sink elements. The pump radiation is fed through the free narrow faces of the plates. Treated material is placed on the base surface, conventionally divided into sectors according to the number of laser beams. Scanning heads installed over one of the vertices of each sector at an altitude determined by the formula h=d/tgα, where d is the diagonal length of the sector, α - maximum scan angle. To compensate alignment errors of laser heads used rigid frame with a square grid sensors.EFFECT: invention allows the simultaneous use of a large number of powerful laser beams to speed the processing of large volume products.5 cl, 14 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

Control device for laser thermal strengthening process // 2599920
FIELD: machine building.SUBSTANCE: invention relates to a control device foe laser thermal strengthening process. Control is provided with further parameters correction of a reinforced part layer in real time to increase processing quality. Device has a double-circuit control system: temperature stabilization circuit on processing object surface and a reinforced layer parameters correction circuit. Device comprises a controller for setting parameters of the reinforced layer, a controller for forming processing parameters, forming control signals for radiation source power control and controllers of the rate of drives of beam guide movable links movement, beam guide heats the treated surface by laser beam, a temperature sensor connected to the functional converter FC1 forming correcting signals at rate controllers. Intelligent reinforced layer parameters identifier forms correcting signals for reinforced layer parameters controller by means of functional converter FC3 based on data, obtained from the controller for forming processing parameters, from the temperature sensor through a function converter FC2 and from the heating model unit.EFFECT: heating model is generated based on data received from the temperature sensor and controller for forming processing parameters.1 cl, 1 dwg

Device for radiation treatment // 2587367
FIELD: machine building.SUBSTANCE: invention relates to a device for radiation treatment, which is capable of fast and accurate processing of template surface. Device (10) for processing of template surface (W) with a beam (LB) has a source (32) for generating a beam (LB), device (12) for the beam (LB) movement, and several reflectors (14) located on the optical path of the beam (LB) between the device (12) for the beam movement and treated surface. Several reflectors (14) are inclined at a predetermined angle corresponding to the direction of incidence of the beam (LB), the beam (LB) moved by the device (12) for the beam movement passes almost vertically relative to another position of the treated surface.EFFECT: fast and accurate processing of template surface.14 cl, 17 dwg

ethod and device for fabrication of mask for laser unit for production of microstructures // 2580901
FIELD: process engineering.SUBSTANCE: claimed invention relates to laser processing, particularly, to fabrication of masks and apertures for laser unit meant for production of microstructures on the solid body surface. This process includes the formation of gaps on the mask surface to dissipate the laser radiation. Mask gaps dissipating the laser radiation are modified owing to the material density variation as well as material structure and refraction index. Said modification is executed by the beam of fs- or ps-laser or laser on fluorine molecules. Said modified gaps ensure a strong dissipation of the laser incident beam and act as opaque surface during the entire process of microstructure development of the solid body surface.EFFECT: higher wear resistance of masks and accuracy of fabrication.5 cl, 8 dwg

Laser cladding method and apparatus therefor // 2580180
FIELD: physics.SUBSTANCE: laser cladding method comprises feeding a cladding material into the focal region of a laser beam placed on the surface of the article being treated. The initial circular laser beam is used to form a series of parallel annular laser beams, which are converted into a series of conical beams and separately focused along the same optical axis on which the cladding material is fed. The apparatus comprises a laser which is optically coupled with a conical beam forming system, a focusing lens and a cladding material feeding system, an optical system for forming a series of annular laser beams with controlled laser radiation power distribution on annular beams, a rotary mirror with holes for guiding pipes for feeding gas, cooling liquid and the cladding material, and a system of focusing conical mirrors.EFFECT: broader processing capabilities and low power consumption with the high accuracy of making components.3 cl, 1 dwg

ethod and apparatus for structuring solid body surface coated with solid material using laser // 2567138
FIELD: physics, optics.SUBSTANCE: invention relates to a method and an apparatus for structuring a solid body surface coated with a solid material and the resultant packing foil. The method includes forming a structure of at least one region of a solid body surface using a first laser, preferably an excimer laser (1), having pulse duration in the nanosecond range. A second corrugated structure is applied on said structure using a second laser (15), preferably having femtosecond pulse duration. Formation of the structure using the excimer laser is carried out according to a pattern projection technique, and formation of the structure using the laser with femtosecond pulse duration is carried out according to a focusing technique.EFFECT: invention provides rational production of very complex, highly counterfeit secure identification markings and/or aesthetically appealing colour samples that are effective in terms of optical diffraction.20 cl, 13 dwg

Laser radiation distribution method and multibeam laser system therefor // 2563908
FIELD: physics.SUBSTANCE: method includes converting an initial randomly polarised laser beam into a plurality of plane-polarised beams; depolarising the initial laser beam and dividing said beam with a polarisation divider into a pair of plane-polarised beams of equal radiation power and the beam, after conversion of the polarisation thereof, is divided into the next pair with a given power ratio. Beams of any pair are converted by a frequency converter.EFFECT: required redistribution of initial laser power with conversion of polarisation and frequency of the radiation.19 cl, 9 dwg, 1 tbl

Laser-focusing head with zns lenses having peripheral thickness of at least 5 mm and laser cutting apparatus and method using one such focusing head // 2553152
FIELD: physics, optics.SUBSTANCE: invention relates to a laser beam focusing head for laser cutting, a method and an apparatus for laser cutting of a metal component. The focusing head comprises a collimating lens (13) and a focusing lens (14). The collimating lens (13) and the focusing lens (14) are made of ZnS and have peripheral thickness of at least 5 mm. A deflecting mirror (15) operating at an inclination angle (α) from 40° to 50° is placed between the collimating lens (13) and the focusing lens (14) on the path of the laser beam. The laser cutting apparatus comprises a solid-state laser device (SL) emitting a laser beam with wavelength of 1.06 mcm to 1.10 mcm and power of 0.1 kW to 25 kW, said focusing head and a conveying fibre (CF) connecting the solid-state laser device (SL) and the focusing head.EFFECT: invention provides a stable focusing position of a laser beam during cutting.13 cl, 5 dwg, 1 tbl

ethod and unit for welding of at least two components by laser beam // 2553142
FIELD: process engineering.SUBSTANCE: invention relates to welding of at least two components 102, 104 of super alloys. In compliance with this process, mail weld 110 if made with the use of the first filler metal arranged between said components 102, 104 and weld surface 112 with the use of second filler metal made over the main weld. Spacer 506 is fitted between said components provided with optional flute 105 made along the surface 114 of weld 102, 104. Filler wire 504 is fed over preset surface 114 or inside said optional flute 105. Two lasers 700, 702 or laser 600 with connected beam splitter 604 produce first and second laser beams 508, 510. Said beams are directed at focus points 5122, 514 spaced apart through preset spacing (509), for example, 0.05-1.5 cm. First laser beam 508 is used for making of the main weld 110 with the help of fist filler metal between components 102, 104. Second laser beam 510 is used for making of the surface weld 112 with the use of second filler metal on the surface of the main weld 110.EFFECT: perfected method.9 cl, 8 dwg

Laser welding method // 2547987
FIELD: physics.SUBSTANCE: laser welding is carried out by emitting two laser beams along a fusion line on the side of the upper surface of the processed component. The two laser beams are transmitted through different optical fibres with diameter of focused spots of 0.3 mm or more. The leading laser beam and rear laser beam of the two laser beams is inclined in the welding direction at an angle of incidence relative to the direction perpendicular to the upper surface of the processed component. The leading laser beam is ahead of the rear laser beam on the upper surface of the processed component in the welding direction. The rear laser beam is behind the leading laser beam. The angle of incidence of the leading laser beam is set greater than that of the rear laser beam.EFFECT: preventing sputtering and sticking to the upper surface of the processed component and the optical component during welding, preventing undercut or underfill of the joint on the back surface of the processed component.3 cl, 4 dwg, 3 tbl, 2 ex

Structural unit with laser track and method of its fabrication // 2542056
FIELD: process engineering.SUBSTANCE: set of inventions relates to structural unit that has laser track making the fracture initiation line composed of recesses produced by laser beam for preparation of the next separation of said unit to separate structural elements. Distance between nearby recesses is smaller than or equal the diameter of said recesses measured at structural unit surface. Note here that said laser track is combined with the recesses in separate structural element.EFFECT: regular edges of the fracture.12 cl, 6 dwg

Laser welding system and welding method using laser beam // 2532686
FIELD: physics.SUBSTANCE: system comprises a laser beam source (1), a laser beam collimator (2) and a focusing device (3). An optical element (5) is placed between the collimator and the focusing device (3) and is designed to branch the system for distributing the laser beam power in a first direction at an angle to the axis of the collimated laser beam. In the system according to a first version, a bifocal element (6) is placed either between the optical element (5) and the collimator (2) or between the optical element (5) and the focusing device (3). In a second version, a bifocal element (6) is placed between the collimator (2) and the focusing device (3).EFFECT: homogeneity of power distribution of laser radiation in the welded area.22 cl, 9 dwg

Pancratic focusing system // 2532649
FIELD: physics, optics.SUBSTANCE: invention can be used in making high-power laser systems for focusing radiation at remote targets. The system includes a first lens, the first and second lens components of which are capable of moving along the optical axis of the lens. A third lens component is immovably mounted. The system includes an additional laser and at least one additional lens, which is identical to the first, arranged such that optical axes of the laser and all lenses cross at one point. The distances from the optical axis of the laser to optical axes of the lenses are equal. Each lens further includes a plane-parallel plate placed in front of the first component such that it is able to turn about an axis perpendicular to the meridian plane of the system. All optical components of the lenses are made of quartz glass. The plane-parallel plates, first and second lens components are kinematically synchronised with each other.EFFECT: high accuracy of adjusting parameters of laser radiation at a target while simultaneously increasing the transmitted radiation power, high reliability and broader technical capabilities.3 dwg

ultibeam laser welding // 2492035
FIELD: process engineering.SUBSTANCE: invention relates to laser welding and may be used in various branches of machine building. Two laser beams are directed to the surface of article to be welded at an angle to each other, to the butt of said article so that one melt molten pool is created. One, the main, laser beam is sent at right angle to article surface to form liquid molten pool, Steam-to-gas channel is formed in said pool. Second beam is sent at angle to said main beam onto preset section of the formed steam-to-gas channel surface.EFFECT: preset characteristics of weld, higher reliability.2 cl, 3 dwg, 1 ex

Solar cell and method and system for making said solar cell // 2467851
FIELD: physics.SUBSTANCE: invention relates to solar cells and layers of material in said solar cells, as well as a method and a system for making solar cells. The solar cell contains at least one layer formed by laser ablation which forms a surface zone. The uniform surface zone, which must be formed, is at least 0.2 dm2 and the layer is formed by ultrashort laser pulses while scanning the laser beam using a rotating optical scanner having at least one mirror for reflecting the laser beam.EFFECT: high efficiency of generating solar energy.40 cl, 11 dwg

Carbon nitride coat and article with such coat // 2467850
FIELD: process engineering.SUBSTANCE: invention relates to application of carbon nitride coats on various articles with large surface area. Said coat is applied by ultra short laser pulses. Laser beam is scanned by rotary optical scanner including, at least, one laser beam reflection mirror.EFFECT: higher efficiency and quality, lower costs.22 cl, 15 dwg, 6 ex

ethod of applying coating and coated metal article // 2467092
FIELD: metallurgy.SUBSTANCE: invention relates to application of coatings of metal article with large surface areas. In compliance with this method, coating is applied by VHF-laser pulses in scanning target surface by laser beam. Note here that laser pulse repetition rate is selected to make, at least, 1 MHz. Scanning is carried out at the rate of over 10 m/s by means of rotary optical scanner including, at least, one laser beam reflection mirror.EFFECT: higher efficiency, better quality.31 cl, 34 dwg, 17 ex

Unit for laser processing of materials // 2466840
FIELD: metallurgy.SUBSTANCE: invention relates to laser processing. Laser 2 mounted on bed 1 comprises active element 3 with output end 4 and resonator mirrors 5, 6, at least, two focusing lenses 7, 8, laser radiation direction selector 10 and optical system to feed laser radiation into waveguide face. Lens 7 is connected with waveguide 9. Optical system is composed of the device design to transfer image from the face of active element 4 into that of waveguide 12 and comprises lenses 11, 13. Said laser radiation direction selector 10 is composed of platform 14 moving relative to bed 1, input and output mirrors 15, 16 arranged in parallel on said platform, and platform retainer. Rotary mirror 17 is arranged on said bed 1 behind input mirror 15 to reflect laser beam to first focusing lens 7 and to allow reflected beam to pass between mirror 15 and mirror 16. Focusing element 8 is rigidly fixed to bed 1. Rotary mirror 19 is arranged ahead of lens 11.EFFECT: higher reliability and accuracy, precise processing.3 cl, 3 dwg

Procedure for manufacture of surfaces of high quality and item with surface of high quality // 2435871
FIELD: machine building.SUBSTANCE: coating on item, functioning as substrate, is formed by means of laser ablation of target with radiation of target with beam of pulse laser for cold treatment, thus producing high quality plasma. Further, the procedure consists in scanning the target with a beam of the pulse laser for cold treatment and in formation of coating from high quality plasma. Coating contains less, than one micro-hole per 1 mm2 on surface of the item in such way, that roughness of item surface is equal to ±100 nm by results of measurements made by means of atomic-force microscope at area 1 mcm2 (AFM). Frequency of pulse reiteration of the pulse laser for cold treatment is 1 MHz. According to a preferable version item surface should be free from micron particles and, actually, is surface corresponding to nano technology where dimensions of separate particles do not exceed 25 nm.EFFECT: manufacture of high quality coating of various materials with different properties on various items.20 cl, 15 dwg, 18 ex

Device for laser processing of materials // 2383416
FIELD: physics.SUBSTANCE: proposed device comprises diode laser source of radiation 1 with wavelength λ1, laser source 2 with wavelength λ2, collimator 3, rotary mirror 4, and focusing optical system 5. Collimator 3 is arranged between diode laser source 1 and rotary mirror to convert diode laser divergent beam 6 into parallel beam 7 to be sent to rotary mirror 4. The latter passes through to direct to focusing system 5. In passing through focusing system 5, collimated radiation beam 7 falls on treated surface 9. Laser radiation source 2 generates beam 8 with wavelength m. Said beam comes onto surface of rotary mirror 4, gets reflected from it to come into focusing system 5 and, further on, onto treated surface 9.EFFECT: combination of processing effects, expanded performances.13 cl, 3 dwg

Device for multistation laser treatment // 2368477
FIELD: physics.SUBSTANCE: device has a laser and, optically connected to the laser, a system for dividing the initial beam, a beam convergence system, galvano scanner with a focus lens and a telescope-radiation homogeniser, fitted on the beam path in front of the system for dividing the initial beam. The system for dividing the initial beam and the beam convergence system are in form of mirror matrices. The mirrors in the matrices have equal surface area and can independently rotate and move in two mutually perpendicular planes. Mirrors in the matrix of the beam convergence system can additionally move in the plane of the matrix.EFFECT: multiple increase in efficiency of laser beam machines and reduced power consumption at high quality of the product.1 dwg

Device of multiway laser processing // 2365476
FIELD: technological processes, metal working.SUBSTANCE: invention is related to the field of laser processing of materials, in particular, to device of multiway laser processing and may be used in production of large number of products at single laser complex, also in process of laser cutting, welding, pad welding and selective sintering. Device comprises N+1 lasers of initial beam division system and system of beam convergence, which is arranged in the form of set of N+1 telescopes, every of which is optically connected to laser. Telescopes are arranged with the possibility of independent rotation and displacement in two mutually perpendicular planes.EFFECT: provision of multiple rise of efficiency of laser technological complexes, reduced power inputs at high quality of product.1 dwg

Device for laser working // 2283738
FIELD: working by laser beam.SUBSTANCE: device comprises emitter, power source, control unit, telescopic device, beam splitter with polyhedral prism, focusing lens, and positioning table. The beam splitter has cassette, is movable, and is provided with the drive for linear movement along the optical axis of the laser beam and drive for rotating the polyhedron prism around the optical axis of the laser bean in the plane perpendicular to the axis. Both of the drives are connected with the control unit.EFFECT: expanded functional capabilities.4 dwg

ethod of welding by light beam // 2264901
FIELD: welding.SUBSTANCE: method comprises welding by laser beam generated by the laser emitter provided with two glasses with different thermophysical properties. The light beam is partially absorbed in one of the glasses, which decreases heat power of the light beam.EFFECT: enhanced quality of welding.1 dwg

Solid-state laser (options) // 2243072
The invention relates to the field of laser technology and can be used to generate a beam of Nd: YAG lasers with divergence 10-20 mrad

Device for laser welding // 2219028
The invention relates to metallurgy and can find application in electronics, instrument and mechanical engineering

Device for laser welding // 2193956
The invention relates to the field of engineering, in particular to a device for laser welding of thin wires, and can be used in electronics, instrument and mechanical engineering

Device for simultaneous dual beam laser welding // 2174066
The invention relates to metallurgy, in particular to a device for simultaneous dual beam laser welding of parts, and can be used in electronics, instrumentation and mechanical engineering

Optical-focusing head for laser processing // 2116180
The invention relates to optical focusing heads for laser processing and may find application in engineering and other industries

Installation for laser processing // 2113332
The invention relates to laser technology

The method of welding pipes from plated ribbon // 2108178
The invention relates to the field of engineering, specifically to the technology of laser welding, in particular to a method of welding pipes from plated ribbon
The way svetlucavi processing details and device for its implementation // 2086377
The invention relates to the treatment of materials by local heating by means of a light beam

Welding system for manufacturing a continuous pipeline // 2074799
The invention relates to welding, in particular, to mobile for continuous welding of pipelines

Installation for laser welding of pipelines // 2074798
The invention relates to welding, in particular, to an apparatus for laser welding of pipelines and can be used for laying pipelines for various purposes in the field

Installation for laser cutting // 2062198
The invention relates to mechanical engineering, in particular to technological installations for laser cutting

Installation for laser cutting // 2062197
The invention relates to mechanical engineering, in particular to technological installations for laser cutting

Installation for laser cutting // 2060135
The invention relates to mechanical engineering, in particular to technological installations for laser cutting

Technological lens for laser processing // 2049632
The invention relates to welding, in particular to technological lenses for laser processing, and can be used for processing in remote places parts of the developed form

Device for adjusting the focusing of the laser system installation // 2047447
The invention relates to welding, in particular to a device for laser treatment and may find application in various engineering industries

Installation for laser machining // 2034687
The invention relates to laser technology, and more specifically to a device for laser treatment of the art products and materials

Laser machine for cutting slabs // 2032514
The invention relates to laser welding, in particular laser machine for cutting slabs, and can find application in various engineering industries

A method of processing a material by a laser beam // 2021087
The invention relates to the use of laser radiation on materials and can be used in laser technology, non-destructive testing
 
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