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JPH0759325B2 |
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JPH0759332B2 |
A method and apparatus for forming a heat exchanger assembly (20) including wrapping a one-piece heat exchanger tube (22) onto a heat transfer unit (21) having a plurality of fins on upper and lower surfaces, the fins being provided with...
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JPH07155849A |
PURPOSE: To manufacture a panel in good appearance by providing a small folding piece, which has a part that overlaps when bending, successively at one end of a folding piece that becomes a side part and also providing a difference in le...
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JPH0723055Y2 |
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JPH07136720A |
PURPOSE: To make welding strain small and to improve bendability by linear heating by specifying the ratio of the yield stress at the temp. of a steel sheet and the yield stress at room temp and the plate thickness. CONSTITUTION: The yie...
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JPH07504364A |
PCT No. PCT/GB93/00420 Sec. 371 Date Sep. 6, 1994 Sec. 102(e) Date Sep. 6, 1994 PCT Filed Mar. 1, 1993 PCT Pub. No. WO93/17807 PCT Pub. Date Sep. 16, 1993.A machine for manufacturing piston rings from the metal strip (10). The machine co...
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JPH0788579A |
PURPOSE: To provide a butting device, which is capable of securely butting bars fed to a processing machine, and a butting method. CONSTITUTION: The bars 11 are fed and are supported on a supporting means 31 situated in an actuating posi...
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JPH0780557A |
PURPOSE: To provide a method where the highly precise bending can be made to a work of small width, and a magnetic head can be positioned with high precision even when the width of the head base is reduced by the highly dense packaging o...
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JPH0720542B2 |
The present invention provides a matrix for the production of pellets from powdered, granular, fibrous or pre-compressed loose material, said matrix having a plurality of pressure canals passing therethrough through which the loose mater...
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JPH079519U |
[Purpose] When there are a plurality of lower retainers rotating in the same direction in the axial direction of the material, even if a rotation difference occurs during torsion molding between the retainers, the transmission mechanism ...
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JPH078385B2 |
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JPH071043A |
PURPOSE: To enable forming of intricate shapes by capturing the rod-like structural member in its intermediate part, moving the structural member in an axial direction and rotates the same and further supplying the structural member to a...
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JPH0698421B2 |
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JPH0698406B2 |
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JPH0683115U |
[Purpose] The present invention relates to a helical gear manufacturing apparatus, and an object of the present invention is to plastically deform a helical gear by applying a predetermined torsion angle with a jig having spur gear blank...
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JPH0677917U |
[Purpose] Obtain a product with good dimensional accuracy and as few shape defects as possible. [Constitution] Twisting dies 1Aa, 1Ba, 1Ac, 1Bc of the upper and lower dies 1A, 1B divided into multiple pieces in the longitudinal direction...
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JPH0638588Y2 |
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JPH06277851A |
PURPOSE: To easily obtain a complete round flange by welding a cut part, after pressing an annular plate obtained by cutting a long size coil in the axial direction, and thereby dispensing with a correction after deposition. CONSTITUTION...
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JPH0670939U |
[Purpose] High strength, strong clamping force, simple structure and less likely to be damaged. [Constitution] In a device for attaching and detaching the pull-back bar 4 in the twister for forging the crankshaft after forging to and fro...
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JPH0673703B2 |
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JPH0673702B2 |
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JPH06262262A |
PURPOSE: To provide a device which can safely, surely, easily and rapidly remove a torsional strain of a forged wing. CONSTITUTION: The device is constituted of a 1st holding means 3, 4, 5 holding a root part of a forging wing 2 to be ro...
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JPH06262269A |
PURPOSE: To cope with the manufacturing of parts of various shapes, and to perform the efficient mass production without variance of the dimensions and shapes by executing simulation by CAD, sorting the body parts from the accessory part...
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JPH0671633B2 |
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JPH06246361A |
PURPOSE: To provide a device which is capable of forming a curved surface that accurately matches a metallic die at the time of the three-dimensional bending of a metallic sheet. CONSTITUTION: On both sides in the longitudinal direction ...
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JPH06246386A |
PURPOSE: To provide a forging method by which processes from a forging to a shaping for an integrated type crank shaft including the prousses of a twisting and the shape forming is executed with a single stand of an equipment and a forgi...
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JPH06238488A |
PURPOSE: To provide a manufacture for the coiled steel pipe which prevents the inside surface fold flaws of the coiled steel pipe and gas excellent cold workability by managing the bead height on the inside surface of an electric resista...
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JPH06228719A |
PURPOSE: To obtain a high rigidity aluminum alloy material by subjecting an aluminum alloy casting, where a part to be bent is formed, to solution heat treatment and to rapid cooling and then applying bending at a specific angle to the a...
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JPH06218432A |
PURPOSE: To improve the workability of bending by presetting many kinds of necessary bending angles and carrying out bending of the set angles easily in a machine for bending an edge material into a required shape when the edge material ...
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JPH06210357A |
PURPOSE: To easily decide a bending position of a cutter material and to improve the workability by providing the cutter material of a punching die to punch a sheet shape material such as a corrugated fiber board, etc., on a bending mach...
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JPH06207613A |
PURPOSE: To improve the dimensional precision of a crank shaft by interposing, between an arm part and twist dies, a freely fittable jig tightly bonded to both of them for completely restraining the deformation of the arm part so as to c...
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JPH06198346A |
PURPOSE: To provide an apparatus and method for simultaneously carry out bends of a bundle of bars having prescribed diameters or below with good accuracy. CONSTITUTION: The bars 13 are superposed one on another within a plane nearly per...
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JPH06198350A |
PURPOSE: To manufacture an Al product in which a mechanical strength is improved by holding both ends of the Al material by clamping means, twisting the Al material and applying a compression in the axial direction of the Al material. CO...
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JPH0647134B2 |
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JPH0638981B2 |
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JPH0699215A |
PURPOSE: To obtain parts high in precision and excellent in productivity by giving torsional torque to a member by synchronizaing the speed of the member extruded from a molding die with an extruding speed in a method of inserting a mate...
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JPH0687026A |
PURPOSE: To easily set a bending fulcrum irrespective of the arrangement pitch of a reinforcing bar when plural reinforcing bars are bent in a batch. CONSTITUTION: Under a bending position of plural reinforcing bars W set on a frame 2, a...
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JPH0679545A |
PURPOSE: To improve the limit helix angle by forming the surface of a raw material for twisting process in a waveform surface with projected and recessed lines extending from one end to the other end, or in a coarse surface facing from o...
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JPH0617482B2 |
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JPH0615090B2 |
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JPH0615089B2 |
PURPOSE:To increase the accuracy of parts and to reduce the cost by forming the circular arc parts of U-shaped cross sections bent to the opposite sides at both sides of a curving plate like part, then by performing a curve-forming of th...
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JPH0615819U |
[Purpose] The ribs at the ends of the diagonally cut deck plate can be easily pressed into a flat plate at the construction site. [Constitution] Fixing means 5 for fixing the end of the gantry 4 and the deck plate 1 with the rib 1A attac...
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JPH0615818U |
[Purpose] Provided is a wide coil manufacturing apparatus capable of easily and inexpensively manufacturing a wide coil having a shape in which a coil material made of a linear strip is wound along the width direction thereof. [Constitut...
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JPH0647454A |
PURPOSE: To excellently and uniformly bend the boundary part of a supporting spring by providing a notch in a pressing roller and making the pressing roller freely rotationable in direction virtical to the center axis. CONSTITUTION: Beca...
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JPH0647453A |
PURPOSE: To prevent a tube material from side-slipping or falling down in the case of working and to obtain a highly bending precision. CONSTITUTION: Both end parts of a tube material of straight state to be worked is bent by pressing to...
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JPH0647448A |
PURPOSE: To provide a small sized reinforcement bending machine easy to transport and can be used on a building and constructing working site. CONSTITUTION: A vertical center shaft 7 is arranged and fixed on a center of a working stand 1...
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JPH069719B2 |
The production of the internal thread of a connection sleeve (4), which is used as a coupling element for parts of a rock support or of a drill rod, by machine-forming, in particular by thread-cutting, entails great effort since, in the ...
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JPH0623454A |
PURPOSE: To greatly minimize the flattened quantity of winding tube and to improve productivity by providing a plural number of groove type roller devices for the purpose of roll forming in advance, at a curvature close to that of a main...
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JPH067854A |
PURPOSE: To reduce man-hours and cost for manufacturing dies by forming a rotatable blade in a part corresponding to a tab and providing a rotary die which is flush with a cutting die in a nonworking state. CONSTITUTION: A workpiece W is...
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JPH062295B2 |
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