| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
|---|
| 07/08/1997 | US5645104 Device for use in evacuating fluid from a tubular line |
| 07/03/1997 | DE19654584A1 Cage for needle-roller bearing |
| 07/03/1997 | DE19625931C1 Device for stamping out pockets in roller cage |
| 07/02/1997 | EP0781634A1 Apparatus for progressively feeding and punching sheet material |
| 07/02/1997 | EP0781177A1 Process and device for stamping holes in flat workpieces |
| 06/24/1997 | US5640877 Hydraulic piercing and stripping assembly |
| 06/19/1997 | WO1997021504A1 Sheet metal work centre |
| 06/19/1997 | WO1997021502A1 Method in a sheet metal work centre and a sheet metal work centre |
| 06/18/1997 | EP0779670A1 Perforated substrate and method of manufacture |
| 06/18/1997 | CN1151916A Die elevating mechanism for turret punch press |
| 06/17/1997 | US5638717 For use on a high speed mechanical press |
| 06/11/1997 | EP0778092A1 Punch press system and control method therefor |
| 06/04/1997 | EP0776711A1 Press working method for plate material and press working apparatus using the same |
| 05/29/1997 | WO1997018909A1 Punching machine and punching method |
| 05/20/1997 | US5630485 For damping vibrations of a motor vehicle |
| 05/20/1997 | US5630334 Liquid impact tool forming mold |
| 05/20/1997 | US5630277 Portable, power driven punching machine having an aiming beam |
| 05/14/1997 | EP0749363A4 Markless press brake material protector |
| 05/13/1997 | US5628224 Method for sequentially forming can bodies |
| 05/06/1997 | US5626048 Method and apparatus for forming cup-shaped members |
| 05/02/1997 | EP0770436A1 Method for punching a blank from a metal strip intended for automatically manufacturing metal components |
| 04/30/1997 | CN1148525A Die for producing blanking sheet without lap used for electric motor |
| 04/23/1997 | CN1147984A Working machine driven by pressed oil |
| 04/22/1997 | US5622068 Method and machine for producing details from a sheet of metal |
| 04/17/1997 | WO1997013625A1 A tool for punching holes in open cans |
| 04/17/1997 | DE19535759A1 Progressive multi-station stamping and forming tool |
| 04/09/1997 | EP0767018A1 Punching machine with material removal device for punched plate |
| 04/09/1997 | EP0767017A1 Notching press |
| 04/09/1997 | CN2251452Y Tubing double-end perforating and cutting processing device |
| 04/08/1997 | US5618237 Apparatus for making self-piercing nuts |
| 04/03/1997 | WO1997012192A1 Water tank for a radiator system and method for the production thereof |
| 04/03/1997 | WO1997011801A1 Machine for stamping, bending and assembling sheet metal parts |
| 04/03/1997 | DE19535949A1 Maschine zum Stanzen, Biegen und Montieren von Blechteilen Machine for punching, bending and assembly of sheet metal parts |
| 04/03/1997 | CA2205952A1 Machine for stamping, bending and assembling sheet metal parts |
| 04/02/1997 | EP0765735A1 Toggle link punch press |
| 04/02/1997 | CN2250825Y High-speed groove-punching and winding machine tool for disc iron core of electric machine |
| 04/02/1997 | CN1146636A Lead-wire frame for semicondcutor device and making method thereof |
| 04/01/1997 | US5616112 Turret punch press with die exchanging |
| 04/01/1997 | US5615471 Machine for machining sheet metal |
| 03/26/1997 | EP0696960B1 Press-driven tool module, in particular press-driven cross-punching or bending unit |
| 03/26/1997 | EP0620941B1 Die stamping press having ccd camera system for automatic 3-axis die registration |
| 03/25/1997 | US5613693 Toolholder assembly for accurately securing a tool shank in a socket |
| 03/25/1997 | US5613416 Punching tool |
| 03/18/1997 | US5611235 Power distribution mechanism in a stamping and forming machine and method |
| 03/12/1997 | EP0761336A1 Method and apparatus for producing a unitary manifold |
| 03/12/1997 | CA2181300A1 Method of producing a hitch receiver |
| 03/11/1997 | US5609055 Method and apparatus for cutting and notching a hollow pipe |
| 03/05/1997 | EP0607225B1 Apparatus to determine the operational effectiveness of a machine tool |
| 03/04/1997 | US5606910 Press-driven tool module in particular press-driven cross-punching or bending unit |
| 03/04/1997 | US5606888 Method of forming relatively hard materials |
| 03/04/1997 | US5606887 Apparatus and method for cold forming an L-shaped lead alloy battery terminal |
| 02/26/1997 | CN1143547A Punching technique of slotting and cutting-off for side wall of rectangular tubing |
| 02/19/1997 | EP0758565A1 Process and apparatus for realising perforations through double walls of structural members by the internal pressure forming method and a herewith manufactured transversal oscillating lever |
| 02/19/1997 | CN2247569Y Rotary cutter for pipe punching machine |
| 02/18/1997 | US5604678 Controller for a progressive die assembly for the manufacture of limited parts |
| 02/18/1997 | US5604044 Blanks for sheet material forming process |
| 02/18/1997 | US5603155 Method of manufacturing an iron core of a multi-phase linear motor |
| 02/13/1997 | WO1997004894A1 Cam for press metal mold |
| 02/12/1997 | EP0757926A1 Punching processing method and roll forming die used in this processing method |
| 02/12/1997 | EP0693009B1 Apparatus for working metal workpieces |
| 02/12/1997 | CN1142418A Method for punching and cutting process and metal dies for punching press |
| 02/06/1997 | WO1997003772A1 Method of forming relatively hard materials |
| 02/05/1997 | CN1141826A Cold-drawing technology for processing phaseisolated enclosed bus housing |
| 02/04/1997 | US5598733 Apparatus and method for transferring and forming parts in a press |
| 02/04/1997 | US5598635 Hydraulic puncher |
| 01/29/1997 | CN2246027Y Special mould for punching slot on long metal pipe wall |
| 01/29/1997 | CN1141221A Technology for stamping and then forming cylindrical cam |
| 01/29/1997 | CN1141220A Die assembly for plural kinds of works |
| 01/23/1997 | DE19629074A1 High strength and hardness sintered silicon nitride-based material |
| 01/22/1997 | EP0754107A1 Multidirectional cutting tool in a punch press environment |
| 01/21/1997 | US5595560 Die management method for punch press |
| 01/16/1997 | WO1997001405A1 Punch press system and control method therefor |
| 01/15/1997 | EP0753361A1 Die assembly for plural kinds of works |
| 12/31/1996 | US5588345 Fin sheet control apparatus for press |
| 12/31/1996 | US5588344 Electric servo motor punch press ram drive |
| 12/27/1996 | EP0749363A1 Markless press brake material protector |
| 12/19/1996 | DE19623656A1 Workpiece infeed device for plate machining tool |
| 12/18/1996 | EP0689494B1 Apparatus for detecting fault conditions |
| 12/17/1996 | US5584216 Tool with breakage sensor and method |
| 12/17/1996 | US5584204 Press progressive dies for a metallic gasket |
| 12/17/1996 | CA2146336C Locking ring stripper plate assembly |
| 12/10/1996 | US5582215 Ceramic die for cutting and shaping lead frames and method of cleaning the same |
| 11/26/1996 | US5578398 Perforated substrate and method of manufacture |
| 11/26/1996 | US5577427 Plate positioning and feeding system for a punch |
| 11/26/1996 | US5577312 Method of separating micro-joint processed products |
| 11/21/1996 | DE19518166A1 Stamping/pressing apparatus for longitudinal workpieces |
| 11/19/1996 | US5575610 Transport-by-suction type die |
| 11/19/1996 | US5575170 Tooling apparatus and method for high speed production of drawn metal cup-like articles |
| 11/19/1996 | US5575168 Workpiece-deforming tool and die for use in a punch press |
| 11/13/1996 | EP0742058A1 Punching-nibbling press for sheet metal or the like |
| 11/13/1996 | CN2239848Y Edge-punched compound die without thruster |
| 11/06/1996 | CN1134878A Driving device of pressing machine |
| 11/06/1996 | CN1134861A Method for steelplate punching processing |
| 10/30/1996 | EP0739663A2 Machine for forming workpieces |
| 10/30/1996 | EP0739254A1 Workpiece-deforming tool and die for use in a punch press |
| 10/23/1996 | EP0738549A1 A hydraulically driving machine tool |
| 10/23/1996 | EP0596016B1 Method and apparatus for reforming can bottom to provide improved strength |
| 10/23/1996 | CN1133760A Technology for blanking of round parts and special sheet material thereof |
| 10/17/1996 | DE19614574A1 Drive device for press esp. stamp press |
| 10/16/1996 | CN2237503Y Automation operation machine for single punching machine |