Matches 1 - 50 out of 77 1 2 >


Match Document Document Title
8037731 Forging method and forging apparatus  
A forging method and forging apparatus able to improve a dimensional precision of a forged article and able to reduce the machining processes to a minimum and thereby reduce costs are provided....
7761995 Gear wheel with a multiple helical toothing, pressed in one part, and a method and device for manufacturing the same  
A gear wheel includes multiple helical toothings, each having a different helical angle. A pressing method for molding a gear wheel involves introducing a compactable material into a chamber of a...
7690236 Method and apparatus for hole punching  
A hole punching method capable of executing hole punching with high material yield at a low load and preventing occurrence of underfill is provided. The hole punching method includes a step of...
7673489 Forging method, forged article and forging apparatus  
An axial intermediate portion of raw material is held with a holding die in a state in which the intermediate portion is prevented from being enlarged in diameter. The axial end portions of the raw...
7506527 Making integral heat spreader by coining  
A method and apparatus for automatically separating blanks from a copper strip (200) and coining heat spreader lids (400) from the blanks. A high speed blanking structure (208) severs single...
7490503 Method of producing a rotary member made of a metallic plate  
The method according to the present invention comprises: a first curving step of curving a plate-like metallic blank (1) such that the blank (1) is convexed; a bending step of bending, with the...
7415859 Method and apparatus for forming blind holes in sheet material  
A method of forming blind holes in a sheet material is provided. The method includes forming a recessed segment in the sheet material, stamping the recessed segment between a tapered punch and a...
7367211 Forging device and method for forging work  
A forging device includes a die having an axis extending generally vertically. A work is placed in the die along the axis. First and second punches extend coaxially with the die and can interpose...
7360388 Hollow stepped shaft and method of forming the same  
A hollow stepped article is formed from a solid blank to reduce the material cost, and cracking is prevented in a stepped portion of large diameter when a portion of the blank is deformed by its...
7320240 Oil grooves formed in a race  
A device, such as an inner race of a torque converter's overrunning clutch, is formed by powder metallurgy. The race includes oil grooves and chamfers formed in each face by forging. The oil...
7191633 Forging apparatus  
A forging apparatus has an upper die unit connected to an actuator for displacement in unison therewith, and a lower die unit confronting the upper die unit and mounted in a body assembly fixed to...
7171838 Method and apparatus for producing thin walled tubular product with thick walled flange  
Method and apparatus for producing a thin walled tubular product with thickened flange. A first stage metalworking (drawing) of a circular plate material A is done by using a first die set 22...
7140269 Gear wheel with a multiple helical toothing, pressed in one part, and a method and device for manufacturing the same  
A gear wheel includes multiple helical toothings, each having a different helical angle. A pressing method for molding a gear wheel involves introducing a compactable material into a chamber of a...
7059165 Hydromechanical closing device, in particular for lateral extrusion  
The invention relates to a hydromechanical clamping device having two movable die halves and two punches, a first hydraulic piston, and a second hydraulic piston. The second die half is fixed to...
7013696 Method of making a flanged tubular metallic part  
A method of making a flanged tubular metallic part by cold forging is provided. The method comprises a step of forming an axial depression in a blank and a flange forming step of making the...
7007536 Synchronizer sleeve used in power transmission and press-forming apparatus for the same  
A synchronizer sleeve adapted for use in a gear synchronizer mechanism of a power transmission, the synchronizer sleeve being formed at its inner periphery with inner spline teeth for meshing...
6871524 Method, impact machine, and equipment included in an impact machine  
The invention relates to a method for the manufacture of an annular article, which substantially consists of metal, ceramic material, and/or polymer. A cavity in a die is filled with a formable...
6862912 Impact machine  
The invention concerns an impact machine for forming, cutting, or punching a working material in a mould die by impact action during an impact operation carried out by means of impact devices,...
6842982 Method of producing bushing  
By press-fitting a cylindrical blank into a die with one of a pair of punches, and at the same time press-fitting small diameter end portions and tapered portions of the pair of punches into both...
6775908 Production method of cam lobe piece of assembled camshaft  
A method of producing a cam lobe piece of an assembled camshaft in a valve operating system for an internal combustion engine. The method comprises (a) forming a profile of the cam lobe piece by...
6735996 Method of making an axle element for a motor vehicle, and shaping die for carrying out the method  
In a method of making an axle element for a motor vehicle, a rod-shaped semi-finished product of aluminum is use used as starting material and heated to a desired shaping temperature. A first end...
6698267 Method and impact machine for forming a body  
A method of forming a body of a formable working material in an impact machine, which comprises an upper impact unit (29 with an upper ram (14), an upper punch (17), a lower impact unit (3) with a...
6490790 Method of manufacturing preform for connecting rod  
A preform for a connecting rod of an engine is manufactured with a good productivity. The preform has a large-end mass portion which corresponds to a large-end portion of the connecting rod, a...
6460394 Method of manufacturing heat exchanging fin and die set for manufacturing the same  
The method of manufacturing a heat exchanging fin is able to restrict forming wrinkles and ring marks in the heat exchanging fin. The method comprises the steps of: forming dome sections having...
6415512 Method and apparatus for surface processing of sintered oilless bearing  
A method for surface processing of sintered oilless bearing and an apparatus thereof are disclosed by which method the efficiency of covering the pores and the surface roughness of protuberance...
6357274 Sparkplug manufacturing method  
A manufacturing method is provided that produces a tubular metallic shell for spark plugs. The metallic shell has a tapered part in the outer periphery to provide a seal. The tapered part can be...
6349582 Die system for full enclosed die forging  
A die system for full enclosed die forging with an enclosed cavity (1a, 2a) is formed between an upper die (1) attached to the side of a slide (6) and a lower die (2) mounted to the side of a...
6332347 Apparatus for full-enclosed die forging  
An apparatus for full-enclosed die forging for forging a material into a workpiece having concavities on its opposite end surfaces including a first die provided on a stationary frame. A second die...
6260400 Full enclosed forging apparatus  
A full enclosed forging apparatus comprising a construction in which an upper die holder and a lower die holder are respectively disposed as to face a press machine, at least one of the upper die...
6250128 Forging die and upset forging method  
An upset forging die device and method are provided for upset-forging a raw material that is being filled in a cavity of a lower molding die at a portion between an upper punch of an upper molding...
5996229 Method and mold die for forming a spiral bevel gear from metal powders  
A method and a mold die are provided for forming a spiral bevel gear from metal powders. The method includes the steps of: (a) providing a mold die having a die cavity that includes a middle...
5953950 Method and apparatus for manufacturing disk products having helical ridges  
A method and an apparatus for producing a disc product having a plane carng a relief and helical ridges on the outer peripheral side. The inventive production method and the apparatus therefor have...
5894752 Method and system for warm or hot high-velocity die forging  
An axially symmetric ring work piece is formed by a warm or hot, forward and backward extruding, die forging system. In this system, a die having a rearwardly projecting portion, which projects in...
5768934 Outer joint part produced as a formed plate metal part  
An outer joint part for a constant velocity universal ball joint, produced from a tubular member formed from a plate metal part and provided with substantially longitudinally extending ball tracks...
5746085 Gear forming method  
A method of forming a gear through cold plastic working comprises preparing a disc-like blank, and pressing conically a central portion of the blank with a uniform pressure from upper and lower...
5547424 Method and an apparatus for making an elongate object  
In a method of making an elongate object (49) with a head at one end and a point at the other end, a blank (49) is placed in a die (50) having a through-going channel, following which the head end...
5516376 Method of, and apparatus for manufacturing a gear with a central through hole  
A hardened surface layer is formed in the region of inner and outer surfaces of a hollow material having a central through hole, then the hollow material is hot-forged into a hollow gear-like...
5507167 Process and device for providing a shaft with splines  
A forming process for providing a shaft with splines in that the shaft is provided with splines in such a way that the complete tooth depth is ensured over the entire length to be provided with...
5475999 Die-lateral extruding method and apparatus  
An axially non-symmetric article is forged by the first upsetting by means of the first and second punches and by the second die-lateral extruding of a metal bar stock which is extruded via an...
5365765 Method and apparatus for simultaneously upsetting the ends of a cylindricl blank  
A punch press assembly (20) simultaneously upsets two ends (22) of a cylindrical blank (24) to produce a chain pin (34) having an extruded grain structure (134) which extends parallel to its...
5218853 Single-cycle closed die metal forging method  
An apertured part is pressed in a single cycle with no separate slug shearing operation. The press ram and bolster each contain fixed aperture forming punches which extend coaxially and slidably...
5184494 Method of forming universal joint housings  
A method of manufacturing a universal joint outer housing which produces an extrusion which consists of two outer housing instead of one. The outer housing are formed adjacent to each other and are...
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...
4918970 Fully enclosed die forging apparatus  
According to the present invention, there is provided a fully enclosed die forging apparatus having an upside die and an underside die disposed opposedly in a vertical direction between a slide and...
4916931 Apparatus for reprocessing spot welding electrodes  
In apparatus according to the present invention, re-forming takes place in a single operation. The forming device contains a die extended by a hollow cylindrical die area and includes a punch which...
4847968 Forging method for producing a pulley  
During the forging step two metallic flows are generated in the metallic blank, one is an elongating flow toward the flange portion and another is an elongating flow toward the cylindrical portion....
4831861 Hydraulic cold extrusion press  
A cold-extrusion press wherein a platen (4) carries a die part (31) and is capable of being moved towards and away from a stationary table (2) by piston/cylinder devices (5, 6), working...
4779444 Closed die forging machine  
A closed die forging machine is disclosed in which the dies are clamped in their closed position by a hydraulically operated piston and cylinder means. A spacer is positioned between the clamping...
4776197 Process and apparatus for producing an electrical battery pole or terminal  
An electrical battery pole or terminal (50) is cold-produced by means of a process comprising axial compression at room temperature of an essentially cylindrical metal element (42) between a first...
4685323 Method for increasing the buckling load capacity and the comprehensive and tensile properties of a column  
In accordance with the present invention, there is provided a method for increasing the longitudinally compressive and tensile proportionality limits and ultimate strengths of an elongated...
Matches 1 - 50 out of 77 1 2 >