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7526862 |
Method of manufacturing a hollow blade for a turbomachine
Method of manufacturing a hollow blade ( 1 ) for a turbomachine in which the blade ( 1 ) is made from a preform ( 14 ) obtained from external primary parts ( 28, 30 ). In order to reduce costs, the...
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7370506 |
Forging die with marking means
A forging die includes on one face, a half-imprint of a part to be forged such as a turbine engine blade. The die also includes on the face, a device for forming a marking along two directions...
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RE39647 |
Disk for toroidal type continuously variable transmission
The disk has a traction surface having a concave-arc-shaped cross section which is interposed between a small diameter end portion and a large diameter end portion. In the central portion of the...
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7055237 |
Method of forming a drug eluting stent
The present invention provides a method of forming a drug eluting stent, the method comprising coupling a stent framework to a mandrel, inserting the mandrel with stent framework into an open die,...
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6708549 |
Method and device for moulding a tripod spider
A method of and device for forming a tripode star for a tripode joint, which tripode star comprises an annular hub member and three arms which adjoin the hub member, extend radially relative to a...
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6481258 |
Removable trailer hitch ball
A removable trailer hitch ball in which a generally spherical configuration hollow ball with opposed upper and lower vertically aligned bore holes for removable attachment to a stud with a cross...
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6336780 |
Blank edge reform method and apparatus for a container end closure
A non-precurled, non-curled shell is transferred to a reform station. The reform station contains a coin die and a coin punch. The coin die has the desired round finished blank diameter machined...
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5992205 |
Means to manufacture steering rack bars
A die for forming the toothed end of a steering rack bar from a cylindrical blank includes first and second die blocks relatively movable to converge on the blank. The die blocks incorporate...
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5744175 |
Device for expanding rotationally symmetrical shaped parts
A device for expanding rotationally symmetrical shaped parts (16), including a divided expanding mold (1), a pressure die (11) and a pressurizing means (14), wherein a mold cavity (9) of the...
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5177991 |
Method of and apparatus for coining tapers at opposite ends of a sleeve member
A method of and apparatus for coining tapers at opposite end faces of a sleeve member in which upper and lower punches are displaced relative to upper and lower dies, respectively, before start of...
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RE33990 |
Method of forming box-like frame members
A box-like frame member is formed by compressing an internally-pressurized tubular blank within a die having a cavity conforming to the final box-like cross section desired for the product, and...
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5106012 |
Dual-alloy disk system
Two pieces of metal are bonded together at a surface by placing the two pieces into contact at the surface and forging the two pieces in a die which causes substantial displacement of the metal...
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5100050 |
Method of manufacturing dual alloy turbine disks
An article of manufacture having at least a first and a second part, each part having different mechanical properties, compositions, microstructures or combinations thereof, being joined together...
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4984445 |
Ceramic isothermal forging die
A ceramic isothermal forging die comprises a pair of disk-shaped die halves that are formed of ceramic and have die cavities cut in their mating surfaces and a pair of die half holders each having...
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4798077 |
Method for producing a family of forged ring rolling preforms and forging die therefor
A method (FIGS. 4 and 4a) for making ring rolling preforms (102) of substantially toroidal shape for ring rolling (84) into substantially rectangular cross-sectional wall shaped forging blank rings...
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4685606 |
Oxide-free extruded thermal joint
A method of joining a thermally conductive element to an electric circuit chip for cooling the chip includes initial steps of forming an oxide-free preform of a fusible metal alloy by extrusion of...
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4653310 |
Die assembly for use in general type mechanical press machine
A die assembly for use in a general type mechanical press machine has opposite upper and lower dies adapted to be fitted in upper and lower die sets, respectively, so as to be slidable freely by a...
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4590787 |
Screw press
A slide is vertically movable in a press frame and supports the upper die. A threaded main spindle is operative between the press frame and the slide. A clutch disc connected rationally rigidly to...
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4584744 |
Apparatus for assembling and forming parts
An assembly machine is disclosed in which a slug of one metal is inserted and staked in a cup formed of another metal. During the staking operation, the shape of the slug and the cup is altered by...
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4576701 |
Nickel electroplating anode and method of forming
This invention relates to a plating electrolytic nickel anode which is in the form of a sphere by directly and plastically deforming a plate-like electrolytic anode of high purity. This invention...
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4543812 |
Forging apparatus
A blank section of a steel rod is heated and then successively impacted between hot forging dies to form a preform or rough forging ball joint socket having a tubular socket portion and a laterally...
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4510788 |
Method of forging a workpiece
A metal workpiece, such as a gear blank, is forged in a press. The workpiece is first heated and then placed in a working chamber above the press. Force is applied against opposite sides of the...
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4463591 |
Method of fabricating scroll members by coining and tools therefor
Method for forming scroll members comprising an end plate having an involute wrap rigidly affixed thereto. The end plate and involute wrap are precision formed, e.g., by casting, either as an...
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4462238 |
Method for controlling properties of metals and alloys
A method for increasing strength and/or hardness of a preshaped metal specimen by cold working is disclosed. Compressive force is applied to the specimen slowly so that the yield strength of the...
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4461162 |
Forging of conical liners
Apparatus for forming, from a generally conical billet, a hollow forging of desired wall thickness having a generally conical portion tapering to a smaller cylindrical extension, the inner and...
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4437331 |
Universal transmission coupling and a process for manufacturing such a coupling
A universal coupling comprising an outer element integral with a first shaft having a spherical cavity inside which are formed grooves, an inner element integral with a second shaft and having an...
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4420962 |
Method of cold coining a toothed segment for an endless track wheel and two-piece die therefor and article formed thereby
A method of forging an arcuate shaped toothed segment which is adapted to be bolted to an endless track wheel for an endless track vehicle. The method includes the simultaneous finishing without...
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4369077 |
Method of manufacturing an electromagnetic core
A method of manufacturing stationary electromagnetic cores utilizes mild steel having a carbon content of up to 0.01% by weight and an impurity content of less than 0.31% by weight. Use of this...
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4366697 |
Press for producing workpieces from wire segments
A press for producing workpieces from wire segments. The press includes a stationary matrix, a press carriage drivable back and forth, a crankshaft drive for the press carriage, a stamp leading the...
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4351177 |
Apparatus for making a bevel gear
The apparatus includes a die, a punch, and a concentric counterpunch having an annular front extension; the die cavity has a spline-shaft-like extension and the counterpunch extension has a...
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4321818 |
Closed forging press
In a hydraulic forging press having one or a plurality of press rams actuated reciprocatively through working oil by reciprocating motion of pump ram given by mechanical driving means, a closed...
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4207762 |
Method of forming high quality forgings
A method of forming forgings having controlled grain characteristics and reduced residual stresses. In accordance with the method the amount of stock used for a particular forging preferably only...
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4198843 |
Process for producing tubular articles
A cold working process for the manufacture of a hollow tubular metal article having a shaped head, the process comprising: (a) supporting an open-ended hollow metal tube on a first forming tool...
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4186587 |
Forging press
The disclosure relates to forging and pressing equipment, particularly, to presses exerting double action upon work. The press of the present invention comprises rams carrying males dies and rams...
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4130005 |
High speed ball header
A method and apparatus of cold forming is disclosed for improving die life. During a first phase a workpiece is initially engaged between a pair of dies with a sufficiently low force and velocity...
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4050283 |
Method and apparatus for forging bevel gears
Helical or spiral bevel gears are forged from powdered material in a mold ving a stationary die in which a cavity is provided with an interior gear configuration conforming to the desired gear...
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4015461 |
Closed drop forging die
The present drop-forging die includes an upper and a lower die member which re pressed together in the forging operation to form a closed cavity of the shape of the finished workpiece without a...
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3945552 |
Method and apparatus for forming a corrugated waveguide
A method and apparatus for forming a corrugated waveguide which has pairs of sub-blocks for forming the corrugated metal tube into the desired shape repeatedly by mating the sub-blocks, separating...
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3832763 |
METHOD OF DROP-FORGING SINTERED WORKPIECES
The present drop-forging method of presintered workpieces employes a droprging die which has a dimension transverse to the direction of motion of a die member larger than the dimension of a...
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3791188 |
METHOD OF DIE-FORMING PARTS WITH IMPROVED GRAIN STRUCTURE
A method of die-forming parts so that, in their final shape, they have a substantially continuous grain structure, whereby a cylindrical blank is shaped into a spherical part by drawing the grain...
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3789650 |
METHOD FOR FORMING REDUCED DIAMETER ENDS ON ELONGATED WORKPIECES
Method for forming reduced diameter ends on elongated workpieces, particularly tubing, characterized in that a tube is positioned between opposed dies aligned with the tube, one die being movable...
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3771480 |
METHOD AND APPARATUS FOR EXTRUDING A RIVET FORM IN A LAYER OF METALLIC MATERIAL
An assembly of two layers of metallic, or a metallic and a non-metallic, material conjoined by an extruded elongated rivet formed in and from one metallic layer, staked over and about the perimeter...
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3739664 |
TOOLS AND MACHINE PARTS AND METHODS FROM INVERSE DRAFT FORGING
The disclosure is directed to the use of forging tools and machine parts by employing a method and structure in the form of a negative draft angle and larger positive draft angle to form tongue or...
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3735626 |
UPSETTING DIES
A pair of die holders normally engage the opposite sides of a plate between them and are provided with recesses facing the plate and extending lengthwise of it, with the wall of each recess...
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3680381 |
METHOD OF AND APPARATUS FOR FORMING PARTS WITH RE-ENTRANT SURFACES
A turbine or compressor blade with projections adjacent each end having one or more arcuate re-entrant surfaces is initially forged and is finish formed, either hot or cold, in a mould which...
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3531970 |
APPARATUS FOR FORMING BEARING RACES
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3425122 |
METHOD OF MAKING AN ELECTRICAL SWITCH SUB-ASSEMBLY
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3410127 |
Plate with integral rivet and method and apparatus for making same
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3195769 |
Burst diaphragm and method of making same
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3191232 |
Hydraulic compacting press
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