Method of forming discrete relief surface and device therefor

FIELD: metal processing.

SUBSTANCE: invention relates to metal forming, specifically to devices for shaping surfaces of double curvature by casting, model or die tooling. At installation of rods in preset positions they are displaced in at least two directions, using least one rod guiding device connected with system of coordinate movements and dispensing mechanism corresponding to said guide device.

EFFECT: broader technological capabilities.

2 cl, 6 dwg

 



 

Same patents:

FIELD: mining.

SUBSTANCE: locking system of the machine is provided between the guide of the sleeve and the locking ring of the assembly of punch of the hole-punching machine with CNC. In case of necessity to adjust the length of the extension of the punch to the depth of cut, the locking ring and the guide sleeve are locked by the locking mechanism, as a result the whole mechanism turns into the mode of adjustment, and pressing the upper locking ring by hand is not necessary. When adjustment of the length of the punch to the depth of cut is complete, it is necessary to press the hook pin to unlock the locking mechanism, and the locking ring returns to its initial position.

EFFECT: simplification of adjustment process.

2 cl, 7 dwg

FIELD: process engineering.

SUBSTANCE: inventions relate to metal forming and can be used in forging with burnishing. Billet is arranged between two rolls, each having shaped working surface corresponding to that of finished part. Billet is burnished by rolls swinging in opposite directions with the help of drive. Note here that rolls are pressed to billet with burnishing force. Burnishing is performed in turns in lateral directions relative to billet lengthwise axis. Proposed device comprises frame, top and bottom rolls having toothed sectors, two drive hydraulic cylinders and two rotary hydraulic cylinders. Drive hydraulic cylinders have hinged levers that make four-link mechanism to lift and down top roll and impart burnishing force to it. Rotary hydraulic cylinder rods are articulated with rocker to transfer angular momentum and burnishing force to bottom roll. Wedge mechanism is arranged to lift and down bottom roll and to transfer burnishing force to it. Top roll is turned because its toothed sector engages with bottom roll toothed sector, bottom roll displacing toothed rack with billet.

EFFECT: higher quality of forged parts.

10 cl, 12 dwg

FIELD: metallurgy.

SUBSTANCE: device includes first selvage motion roller for formation of biflex elements on both straight edges of metal strip, cutting rollers, implemented with ability of cutting of extracted from first selvage motion rollers metallic strip lengthway for two strips along the straight or wave-like lines. Additionally mentioned rollers are able to alternation of angle of horizontal rotation. It is also plate-flanging facility for connection of single curved element with biflex element with curling of cut metal strip in the form of spiral. On both straight edges of metallic strip there are formed biflex elements. Metallic strip is cut lengthwise for two strips by wave-like or straight lines by means of cutting rollers. It is formed single curved element on wave-like edge and it is connected to biflex element with curling of cut metal strip. It is also possible continuous cutting of metal strip by straight and wave-like lines lengthwise. For cutting of strip by straight line cutting rollers are located parallel to metal strip on the section of metal strip input and on the section of metal strip end. Cut metal strip is curled with integration of linear connecting boxes with both ends of curvilinear box. Additionally for cutting of strip by straight and wave-like lines there are alternated angles of horizontal rotation.

EFFECT: there are extended manufacturing capabilities, there are increase accuracy and reliability of connection.

7 cl, 17 dwg

FIELD: metallurgy.

SUBSTANCE: method of press forming with rolling includes placement of stock in matrix set on die plate and rolling of stock with rolling press connected to drive which transfers oscillatory movement to rolling press when it is pressed to stock with force. The rolling press is equipped with a gear sector, and the die plate is equipped with a gear rack. When the stock is rolled with the rolling press, gears of the gear sector are in constant mesh with gears of the gear rack to facilitate rolling conditions. The device for die forming with rolling contains the rolling press and the matrix, installed on the die plate for stock placement thereon. The drive of the device connected to the rolling press facilitates pressing of the rolling press to the stock with force, the drive also transfers oscillating movement to the rolling press for rolling the stock with a working surface of the rolling press. The rolling press is equipped with the gear sector, and the die plate is equipped with a gear rack corresponding to the gear sector. The gears of the gear sector are designed to mesh with the gears of the gear rack.

EFFECT: there is facilitated reduction of maximum force of die forming and of speed of rolling.

10 cl, 9 dwg

FIELD: plastic working of metals, possibly manufacture of parts such as flanged tubes.

SUBSTANCE: method comprises steps of end expanding of hot part at deformation temperature less than that of forging and simultaneously expanding diameter of under-flange portion of tube blank and shaping flange in rotating annular die by means of inclined punch fed along axis of tube blank. Process of end rolling out is realized for producing parts having flange thickness less than that of wall of tube blank and under-flange portion of tube blank in the form of truncated cone or cylinder with diameter exceeding by 1.2 - 1.05 diameter of tube blank. Punch is fed by inclination angle 4 - 6° relative to axis of tube blank.

EFFECT: improved quality of parts.

1 dwg

The invention relates to machines for hot or cold die forging forging method of the local deformation, implemented on presses for stamping-forging

The invention relates to equipment for stretching-card-mounting presses used in the formation of large parts of double curvature in the aerospace industry, and can be used in shipbuilding and other industries, including for another purpose

The invention relates to a hot body stamping parts like flanges, disks, and so on

The invention relates to the field of metal forming and can be used in the manufacture of a new generation of the defining details of sensor equipment, radio and video equipment, bakery and milk processing, in the medical equipment in the manufacture of containers for storage of blood and long-term blood analyzers to AIDS, as well as the manufacture of basic elements bioproof-readers-converters, the determining module protection from electromagnetic fields from cell phones and Express analyzers abnormal growths of muscle tissue

The invention relates to the field of metal forming and can be used in the manufacture of a new generation of the defining details of sensor equipment, radio and video equipment, bakery and milk processing, in the medical equipment in the manufacture of containers for storage of blood and long-term blood analyzers to AIDS, as well as the manufacture of basic elements bioproof-readers-converters, the determining module protection from electromagnetic fields from cell phones, Express analyzers abnormal growths of muscle tissue and bio-Informatics systems

Method of forming // 2475322

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and may be used in aircraft engineering for making large-sized sheet and bulky parts. Billet is formed in two steps. At first step, billet is shaped to about 80-100% of final shape in cold state by creating compression strains in surface layer of billet bulged side. At second step, the billet is finally shaped by creating expansion strains for equalising and compression stress relaxation.

EFFECT: higher quality, reduced labor input.

11 cl, 4 dwg, 2 ex

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to sheet-stretching. Prior to sheet-stretching, at least, two layers of film material are laid on male die while inner surfaces of said layers are lubed.

EFFECT: uniform deformation, reduced number of passes and labor input.

3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and may be used in fabricating modular metal panels consisting of sheets and ribs or sections, moulded or welded panels. First, lengthwise forces are applied along stiffness rubs to curve the panel along said ribs. Then, crosswise forces are applied, along with heating, to wedge-like panel sections located across stiffness ribs. Note here that wedge base width and spacing between said sections are selected in proportion to preset radii of curvature, while billet is heated through its height.

EFFECT: reduced labor input, higher efficiency.

2 cl, 5 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming. Proposed method consists in consecutive local clampings in several passes. In first pass, spherical surface is produced with curvature radius equal to maximum preset radius on entire surface of sheet billet. Here, used is round female die and spherical male die. In second pass, sheet billet section with smaller curvature radius is drawn using annular female die and spherical made die. Working radius of said male die varies with drawing radius, with due allowance for spring back of billet and its thickness and depends upon Gauss curvature of part surface: Note here that where Rd is drawing radius, m; R1 is preset transverse radius of billet central surface, m; R2 - is preset lengthwise radius of sheet billet central surface, m; K is double Gauss curvature of billet central surface, 1/m2. In third pass, spherical make die is used with working surface radius proportional to preset transverse radius R1 with due allowance for spring back and thickness, as well and prismatic female die.

EFFECT: reduced residual strain and thinning.

2 cl, 2 dwg

FIELD: metallurgy.

SUBSTANCE: formation of parts is performed with pressure and support elements in the form of puncheon and matrix with creation of plastic contact at interaction points of the tool with the workpiece. Pressure is created and allows reaching the workpiece material yield point in sections of the part with single curvature owing to non-tight contact of working surfaces of pressure and support elements. Excess pressure is created in sections of the part with double curvature owing to tight contact of pressure and support elements till the required thinning of those sections is obtained.

EFFECT: increasing intensification of the deformation process.

5 cl, 4 dwg

FIELD: process engineering.

SUBSTANCE: set of invention relates to metal forming and may be used in producing bicurved surface shells. Separate parts are preformed. Here, to compensate for welding strains from welding seam shrinkage, parts made from titanium or steel are produced with undercurved edge while parts from aluminium are made with fluted edges all over their edges in the zone of post-welding deformation with width making 8-10 S where S is part thickness.

EFFECT: higher quality of bicurved surface shells.

8 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used in producing bicurved surface sheet structures. Structure surface is divided into separate parts formed by straining the billet. Then produced parts are welded together to produce preset structure. Note here that structure is divided into separate parts to ensure identical thinning of said parts in their deformation. Said thinning in distributed along parabola with its branches starting from the part points located on opposite edges and at the distance of bending and assembling allowances with apex in the zone of the smallest thinning with ordinate equal to least thinning.

EFFECT: higher quality of sheet structures.

6 cl, 5 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to tube bending. Proposed method comprises the stage of computing, at least, one cycle of instructions related to, at least, one parametre of tube production process depending upon set of data on a tube and set of process data. At least, one 3D geometrical model of, at least, one tube bending machine and appropriate tools is produced governed by, at least, one production parametre derived from cycles of computed bending instructions. To comply with thus computed bending instructions, 3D and kinematic simulation of tube bending is performed, the tube being described by set of data on tube and bending performed by bending machine and appropriate mechanical tools described by appropriate 3D geometrical model. Possibility of producing tube by, at least, one bending machine and appropriate tools is checked up.

EFFECT: higher quality of tube bending.

14 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: device consists of bed plate, of two supports mounted on bed plate and of replaceable puncheons. The bed plate rotates around its axis, is installed in a case and performs vertical travels. The case travels in horizontal plane. The supports are mounted on the bed plate, they converge and rock to centre of the bed plate and back under control. A bracket-shaped frame is rigidly tied with the case. A beam rotating around axis of the bed plate in mounted on the frame. The beam has slots, wherein there are installed lengthwise or two cross puncheons. The puncheons are equipped with shank ends corresponding to slots.

EFFECT: simplification of design avoiding usage of additional mechanisms for hoisting, turn and overturn of treated panel; control over dimension of bend section; upgraded quality of parts.

2 dwg

FIELD: machine building.

SUBSTANCE: form block is made of interconnected sections attached to single platform. A template jig is mounted on guide elements from the side of working surface of the form block; the template jig determines arrangement of base orifices in a sheet work-piece. Removable fixing pins are inserted into base orifices in the sheet work-piece and into corresponding orifices in the form block. Blank-holders fixing a part are positioned on working surface of the form block. The blank-holders are attached by adjusting screws screwed into a threaded fitting, mounted into a body of the form block behind both internal and external contour of the part. A sheet work piece is first fabricated on the form block of the press of cross fringe, and further with mechanical treatment of a machine with programme numerical control using the same form block as process equipment.

EFFECT: upgraded quality of parts.

2 cl, 5 dwg

FIELD: plastic working of metals, namely processes for bending, finishing and controlling contour of bent sheet parts.

SUBSTANCE: method comprises steps of shaping double-curvature sheet parts by two transitions; at first transition forming cylindrical or cone curvature across blank without thinning it while under-bending blank by value equal to 1/3 of predetermined curvature of part in the same direction; at second transition further deforming blank and thinning it in direction normal relative to direction of blank deforming at first transition during process of rotary local or successive local deforming; selecting upper deforming member whose curvature is less than predetermined one in cross and longitudinal directions at least by springing value; controlling contour by means of gages in cross sections of blank.

EFFECT: lowered time period of bending piece blank, reduced labor consumption and bending effort, lowered power consumption of process.

4 cl, 4 dwg, 1 tbl

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