| Patents for B21J 13 - Details of machines for forging, pressing, or hammering (6,375) |
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| 01/24/1989 | CA1249141A1 Self-drilling screw and method and means for manufacturing same |
| 01/18/1989 | EP0299319A2 Method and tool for rounding off and compressing edges |
| 01/17/1989 | US4798077 Method for producing a family of forged ring rolling preforms and forging die therefor |
| 01/12/1989 | DE3720899A1 Conveyor track with conveyor truck which is moved in alternating directions on a guide track |
| 01/11/1989 | EP0298223A2 Method for loading and unloading rotatable dies for axial die forging, and axial die-forging machine for carrying out the method |
| 01/10/1989 | US4796459 Accumulator system for closed die forging |
| 01/10/1989 | US4796458 Forging manipulator |
| 01/10/1989 | US4796456 Forging machine |
| 12/28/1988 | CN88100946A Method for producing near net ring gear forgings |
| 12/28/1988 | CA1247461A Press roller transfer system |
| 12/27/1988 | US4793231 Composite tool and method of making |
| 12/21/1988 | CN88101709A Mold lubricant exhausting apparatus for knocking-out mechanism |
| 12/20/1988 | US4791803 Die-change device for a multi-stage forming machine |
| 12/20/1988 | US4791796 Tool for cold forging tubular members |
| 12/13/1988 | CA1246330A1 Blade twisting apparatus |
| 11/24/1988 | DE3714855A1 Operating machine for manipulating workpieces in the press area of a forming press |
| 11/22/1988 | CA1245042A1 Tool for and method of making hollow articles |
| 11/15/1988 | US4783986 Anti-vibration mounting for shock-or vibration-producing machinery |
| 11/15/1988 | CA1244791A1 Transfer device |
| 10/26/1988 | CN87216062U Push-off mechanism of automatic cold header |
| 10/25/1988 | US4779444 Closed die forging machine |
| 10/11/1988 | US4776199 Workpiece clamping devices in forging manipulators |
| 10/06/1988 | WO1988007420A1 Mold lubricant discharging apparatus for knockout systems |
| 09/28/1988 | EP0284114A2 Improved extraction device associated with the extrusion pin in a machine for the production of wholly tubular rivets |
| 09/22/1988 | WO1988006931A1 Process and apparatus for forging one piece track roller rim |
| 09/13/1988 | US4770020 Part-shaping apparatus by flow forging and sheet-metal rubber forming |
| 09/07/1988 | WO1988006499A1 Peel assembly for an ingot manipulator |
| 09/07/1988 | WO1988006498A1 A manipulator for metal ingots |
| 08/17/1988 | EP0278306A2 Method for producing a family of forged ring rolling preforms and forging die therefor |
| 08/17/1988 | EP0278298A2 Method for producing near net ring gear forgings |
| 08/16/1988 | US4763501 Punch-probing device on a cross transfer press |
| 07/26/1988 | US4759208 Device for the automatic transfer of workpieces on a multistage forming machine |
| 07/13/1988 | EP0274224A1 Loading a segmented die and ejecting a component formed therein |
| 07/13/1988 | CN87205431U Moulding dies with alloy layer |
| 06/29/1988 | CN86104885B Precision punching press with inner damping static pressure guide rails |
| 06/28/1988 | CA1238671A1 Self-pivoting robotic gripper tool |
| 06/16/1988 | WO1988004207A1 Loading a segmented die and ejecting a component formed therein |
| 06/07/1988 | CA1237576A1 Method for machining clutch gear for automobile transmission |
| 04/21/1988 | DE3726600A1 Die exchange device for vertical drop forge press - dies are fastened on auxiliary intermediate sections, not on die holder |
| 04/05/1988 | US4735080 Forming machine with ram-side ejector mechanism |
| 03/23/1988 | EP0260546A2 Forging machine |
| 03/17/1988 | DE3729631A1 Forging machine |
| 03/16/1988 | CN85100078B Combined forging reduction hole punching technology and its die set |
| 03/09/1988 | EP0258696A2 Forging manipulator |
| 03/08/1988 | US4729234 Built-in lifting and manipulating hydraulic jacks for crossheads of heavy hydraulic presses |
| 03/03/1988 | DE3726763A1 Forging manipulator |
| 03/03/1988 | DE3726756A1 Clamping device for forgings on forging manipulators |
| 03/02/1988 | EP0257449A2 Work piece gripping device on forging manipulators |
| 02/11/1988 | DE3723825A1 Method and apparatus for stretching a metallic workpiece |
| 02/10/1988 | EP0255635A2 Method of and device for drawing out a metallic work piece |
| 02/10/1988 | EP0255634A2 Forging manipulator |
| 01/26/1988 | US4720990 Ejector mechanism for eccentric presses |
| 01/26/1988 | US4720899 Method of manufacturing scroll members for use in a rotary compressor |
| 01/21/1988 | DE3622495A1 Column guide, especially on forging presses |
| 01/19/1988 | US4719790 Table shift apparatus for large hydraulic presses |
| 01/12/1988 | US4718339 Press with chucking plates for sets of tools |
| 12/29/1987 | US4715210 Method for making steering rack bars |
| 11/26/1987 | DE3617065A1 Device for fixing a reduction ring on a shaft for a solid-stock forming press |
| 11/17/1987 | US4706490 Forging press with yoke design for attaching tie-rods to crossheads |
| 10/29/1987 | DE3612893A1 Method and forging die for manufacturing universal joint halves with in each case fork and shaft connection flange for universal joint shafts |
| 10/22/1987 | WO1987006165A1 Device for the ejection of pressings out of a press tool |
| 10/21/1987 | EP0241571A1 Ejector mechanism on the punch-side in a press |
| 10/20/1987 | CA1228253A1 Method and apparatus for forging of crankshafts in presses |
| 10/13/1987 | US4698894 Quick change die retention apparatus |
| 10/13/1987 | CA1227911A1 Forged dissimilar metal assembly and method |
| 09/29/1987 | US4696180 Guiding arrangement for forging press columns assembled of flat tie-rod layers |
| 09/22/1987 | US4694678 Tie-rods fabricated of composite materials for forging presses |
| 09/15/1987 | US4693109 Self-aligning tool assembly for die shaping workpieces |
| 09/10/1987 | DE3607609A1 Device for supporting an air-hammer tup supported in longitudinally displaceable fashion in a stand |
| 09/08/1987 | US4691553 Safety power tool |
| 09/08/1987 | CA1226535A1 Convex type bottom with a bearing rim for bottles for industrial gases obtained by means of hot forging from a steel billet and fixture for forming said bottom |
| 09/01/1987 | US4689984 Method for producing male conical threads |
| 08/25/1987 | US4688417 Apparatus for easy removal of large hydraulic cylinders from presses of pull-down design |
| 08/19/1987 | EP0232429A1 Vibration-insulating device for machines and method for dismantling and assembling it |
| 08/13/1987 | DE3603666A1 Method and die for the production of the end of a flexible shaft, the end having a polygonal cross-section and being twisted over a certain length |
| 08/06/1987 | DE3602884A1 Toggle-joint press for massive forming |
| 07/16/1987 | WO1987004092A1 A method for primarily extending the useful lifespan of ceramic tools, and an arrangement for carrying out the method |
| 07/15/1987 | EP0228658A2 Forging machine |
| 07/09/1987 | DE3643116A1 Forging machine |
| 07/09/1987 | DE3643100A1 Forging machine |
| 07/08/1987 | EP0228030A2 Forging machine |
| 07/08/1987 | EP0122921B1 Manufacture of article having undercut internal surface |
| 07/01/1987 | EP0121531B1 Tool for and method of making hollow articles |
| 06/30/1987 | US4676421 Press having a programmable ram with sensing means |
| 06/16/1987 | US4672729 Method for machining clutch gear for automobile transmission |
| 06/10/1987 | EP0224792A1 Tool-changing arrangement for a multistage metal-forming machine tool |
| 06/10/1987 | EP0224783A2 Method of free forging of work pieces and forging tool |
| 06/09/1987 | US4671095 Method for forming work-pieces by drop forging |
| 06/02/1987 | CA1222478A1 Apparatus and process for forming articles by heading |
| 05/20/1987 | CN86104885A Precision punching press with inner damping static pressure guide rails |
| 05/19/1987 | US4666665 Hot-forging small inner diameter powdered metal parts |
| 05/07/1987 | DE3541805C1 Tube-end upsetting plant |
| 05/05/1987 | US4662205 Machine for cold die casting malleable metals |
| 04/28/1987 | US4660406 Die manipulator |
| 04/28/1987 | US4660404 Die manipulator |
| 04/21/1987 | CA1220652A1 Part forming apparatus by flow forging |
| 04/07/1987 | CA1220057A1 Thread rolling die construction |
| 03/31/1987 | US4653310 Die assembly for use in general type mechanical press machine |
| 03/31/1987 | US4653305 Apparatus for forming metallic article by cold extrusion |
| 03/17/1987 | US4649731 For producing cylindrical objects |