Patents
Patents for B21J 5 - Methods for forging, hammering, or pressing; Special equipment or accessories therefor (5,577)
12/1999
12/29/1999EP0967029A1 Tool for hot punching and calibrating of workpieces
12/29/1999EP0734294B1 Stepped, segmented, closed-die forging
12/28/1999US6006564 Application of dry lubricant to forming dies and forging dies that operate with high force
12/23/1999WO1999066226A1 Hydraulic control clutch device equipped with a guide tube and method for producing such a tube
12/23/1999WO1999066100A1 Metal article with fine uniform structures and textures and process of making same
12/23/1999WO1999066092A1 Bearing material for cold rolling forming and forming member thereof
12/22/1999CN1239172A Processing method and connection structure of joint end of reinforced special and steel for concrete
12/21/1999CA2102336C Process of manufacturing one-piece forged wheels
12/14/1999US6000269 Method of forging and forging equipment
12/07/1999US5996456 Punching apparatus
12/07/1999US5996390 Method for manufacturing vacuum chamber
12/02/1999DE19922046A1 Forming and producing a finished crankshaft
11/1999
11/25/1999WO1999029450A8 Process for shaping a work piece
11/23/1999US5989365 A forging ingot without needing surface cutting formed by casting within mold whereby the sprue hole is plugged after pouring to cause unidirectional solidified crystal structure
11/23/1999US5989026 Ceramic two-piece dental abutment
11/23/1999US5987749 Method of manufacturing a dynamic groove bearing, die suitable for use in such a method, and housing and bearing part manufactured by such a method
11/18/1999WO1999047303A9 Method and apparatus for producing beneficial stresses around apertures by the use of focused stress waves
11/17/1999EP0956914A2 Apparatus and method for near net warm forging of complex parts from axi-symmetrical workpieces
11/16/1999US5984680 Anti-rotational connecting mechanism
11/16/1999US5983698 Easy removed die core device used for cold swaging
11/11/1999DE19912841A1 Transmission component production process e.g. for sprocket for toothed belt
11/10/1999EP0955113A1 Process for manufacturing pieces of casting alloys, especially of aluminium
11/10/1999EP0955110A2 Method and device for flow-turning
11/10/1999CN1046223C Method and apparatus for precision rotary forging
11/09/1999US5979209 Method of forming a torsion bar with hexagonal heads
11/07/1999CA2271115A1 Flow forming method and device
11/04/1999WO1999055475A1 Method for hot pressing workpieces
11/04/1999CA2270751A1 Production process for cast alloy workpieces, especially aluminum parts
11/03/1999EP0953653A1 Method for producing forged iron-nickel-base superalloys
11/02/1999US5976053 Method of manufacturing traction rollers for continuously variable transmissions and traction rollers resulting therefrom
10/1999
10/26/1999US5970776 Apparatus for forming a cup-shaped cage
10/21/1999WO1999052666A1 Process for manufacturing a captive screw
10/21/1999CA2328161A1 Process for manufacturing a captive screw
10/14/1999DE19815615A1 Forging unit for production of workpieces with no or minimal flash formation
10/14/1999DE19814487A1 Locking arrangement for forming tools used for powder pressing, precision forging, thixoforging, injection pressing, injection molding etc.
10/12/1999US5964120 Hot extrusion forging die for use in titanium alloy
10/07/1999DE19815264A1 Precision metal profile forming method
10/06/1999EP0947642A2 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure of connecting deformed bar
09/1999
09/30/1999DE19911118A1 Process for manufacturing shaft fitted with drive wheel forming part of drive train
09/29/1999EP0945199A2 Thin, forged magnesium alloy casing and method for producing the same
09/28/1999US5956988 Process for heading pipe ends and device for implementing it
09/23/1999WO1999047303A1 Method and apparatus for producing beneficial stresses around apertures by the use of focused stress waves
09/23/1999DE19911500A1 Forging device for spherical angled teeth
09/23/1999DE19903360A1 Coupling hub flange making process
09/23/1999CA2323779A1 Method and apparatus for producing beneficial stresses around apertures by the use of focused stress waves
09/14/1999US5950481 Stepped, segmented, closed-die forging
09/07/1999US5948523 Tool for coldforming operations
09/07/1999US5946963 Bevel gear hot-forging apparatus
09/01/1999EP0583381B1 Precision forming apparatus, method and article
08/1999
08/31/1999US5943897 Method for making a hole in a plate and a punch for making such a hole
08/18/1999EP0764298A4 Method for manufacturing flashless metal connecting rod
08/12/1999WO1999039851A1 Method of producing circular cylinder member
08/12/1999WO1999039850A1 Method and tool for formation of an enlarged end portion of a bar
08/11/1999CN2332501Y Four-roller roll forging machine
08/11/1999CN1225689A Tool for coldforming operations
08/10/1999US5934135 Apparatus and method for near net warm forging of complex parts from axi-symmetrical workpieces
08/10/1999CA2185815C Method for making upset ends on metal pipe and resulting product
08/05/1999WO1999039018A1 Steel and method for making cleavable mechanical parts
07/1999
07/29/1999DE19802565A1 Deforming device for bore pressing
07/28/1999CN1224375A Method of fabricating shaft from metal plate
07/22/1999WO1999036207A1 Forging of workpieces
07/08/1999DE19856986A1 Production of drilling tool
07/01/1999WO1999032245A1 Drilling tool for machine tools and method for the production thereof
06/1999
06/17/1999WO1999029450A1 Process for shaping a work piece
06/17/1999DE19754091A1 Work piece machining process for precision forming of teeth
06/09/1999CN1218726A Mould-free direct forging and forming method for metal material sculpture
06/08/1999US5910052 Process for manufacturing a captive screw
05/1999
05/26/1999EP0917917A1 Method and device for cold forming of hollow members
05/20/1999WO1999024631A1 Forged brass product and cut brass product having high corrosion resistance and method of manufacturing the same
05/18/1999US5903967 Double cylinder body and a manufacturing method thereof
05/12/1999EP0914487A1 Tool for coldforming operations
05/06/1999EP0912270A1 Method for producing axially symmetric parts and the article
05/06/1999DE19850155A1 Hemispherical slide piece for swing disc compressor
05/06/1999DE19746840A1 Leakproof closure of a bore in a malleable aluminum alloy workpiece
05/04/1999US5898997 Method for manufacturing a wheel bearing spindle
04/1999
04/28/1999CN2316068Y Automobile generator claw-pole blank finish forging die
04/28/1999CN1214974A Cold-forging forming method for cover of gas generator of car safety air-bag
04/27/1999US5896642 Die-formed amorphous metallic articles and their fabrication
04/21/1999EP0909339A2 Method for processing billets from multiphase alloys and the article
04/21/1999CN1043017C Working method of tapered hole
04/20/1999US5895324 Process for forming axially-extendable bolt by upsetting
04/20/1999US5894752 Method and system for warm or hot high-velocity die forging
04/15/1999WO1998046943A9 Method and apparatus for containing and suppressing explosive detonations
04/08/1999WO1999016561A1 Method for pneumatic isostatic processing of a workpiece
04/08/1999WO1999016560A1 Method of producing a series of individual forged articles from feedstock produced on a continuous rotary extrusion machine; and apparatus operating in accordance with such a method
04/08/1999CA2305373A1 Method for pneumatic isostatic processing of a workpiece
04/06/1999CA2100309C Device for and method of forging a helical gear
04/01/1999DE19742519A1 Sleeve seat making process for cardan shaft
03/1999
03/31/1999EP0739256B1 Method of making a screw thread on a corrugated bar
03/23/1999US5884569 Method and apparatus for containing and suppressing explosive detonations
03/17/1999CN1210767A Apparatus for and method of sizing helical gears
03/11/1999DE19830816A1 Method and apparatus for flow rolling
03/10/1999CN2309912Y Hydraulic upsetting machine
03/09/1999US5878491 Process for the manufacture of a forged connecting rod
03/03/1999EP0899036A2 Apparatus for and method of sizing helical gears
03/03/1999EP0883779A4 Method and apparatus for containing and suppressing explosive detonations
03/03/1999CN1042305C Forming process for hollow sucker and and die thereof
03/03/1999CN1042304C Pumping-rod forging-forming process and die thereof
02/1999
02/18/1999WO1999007497A1 Full enclosed die forging method, full enclosed die forging apparatus, and product of forging
02/17/1999EP0800425B1 Method of manufacturing internally geared parts
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