Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707)
04/2003
04/16/2003EP1175271B1 Method for machining platelike workpieces in a striated manner
04/14/2003WO2002030659A1 V-belt drive
04/10/2003WO2003029069A2 Truck cab space frame
04/10/2003WO2002062501A3 Wedge-lockable removable punch and die bushing in retainer
04/10/2003US20030066329 Methods and apparatus for manufacturing press formed articles
04/09/2003EP1299200A2 A sheet fabrication center with a force direction conversion drive
04/09/2003EP1097010B1 Aerial and die mount cam unit
04/09/2003CN1408490A Device for producing laminated core
04/03/2003WO2003026855A1 Punch
04/03/2003US20030062133 Laminated core machining apparatus
04/03/2003US20030061855 Methods and apparatus for manufacturing flanged articles
04/02/2003EP1297911A2 Methods and apparatus for manufacturing flanged articles
03/2003
03/27/2003WO2002103726A8 Method and device for machining stacked core
03/27/2003DE20219369U1 Stamp mounting for punch press has adjusting ring with spaced notches to allow angular adjustment of cutting head
03/26/2003EP1112158B1 Insert pipe for injection molding, insert pipe processing method, and molded article
03/26/2003CN2541080Y High speed servo punching bear using chord differential punching method
03/25/2003US6538385 Cathode-ray tube and flat electrode of electronic gun and production method
03/25/2003US6536318 Loose lamination die with rotating blanking station
03/19/2003EP1292204A1 Shelf supporting bracket
03/19/2003CN1404423A Hydroforming flush system
03/18/2003US6532783 Clamping device, tool and method of mounting tools
03/06/2003US20030041457 Optical switch
03/05/2003EP1287922A1 Method and device for the punching of laminations for rotors
03/05/2003EP1287917A1 Apparatus and method for bending and punching a metal sheet
03/05/2003EP1035965B1 V-belt drive
03/05/2003CN1102710C Strap for continuous speed changing transmission device
03/05/2003CN1102468C Device for converting punch changing in punching machines from manuel to quick and automatic
03/04/2003US6528757 Apparatus processing a gate portion in a semiconductor manufacturing apparatus, which remove a gate correspondence portion from a semiconductor package connected to a lead frame, and a resin burr deposited on a lead portion associated with the semiconductor package
03/04/2003US6526800 Sheet fabrication center and methods therefor of optimally fabricating worksheets
03/04/2003US6526798 Method of blanking element for belt for continuously variable transmission
02/2003
02/27/2003WO2003015953A1 Punching machine for sheet metal strip
02/27/2003WO2002068278A3 Dome forming system
02/27/2003US20030037586 Method for precision bending of sheet of materials, slit sheets fabrication process
02/27/2003DE20216108U1 Punch, embossing and forming machine for flat material, has press part connected to punch tool via pivotally mounted lever
02/26/2003EP1189745B1 Device for finely cutting workpieces from a material
02/26/2003EP1017517B1 A method for punching and a punch die
02/25/2003US6523445 Loose lamination die with rotating blanking station
02/20/2003WO2003014533A1 Method of manufacturing turbine frame of vgs type turbo charger, turbine frame manufactured by the method, exhaust gas guide assembly of vgs type turbo charger using the turbine frame, and vgs type turbo charger incorporating the exhaust gas guide assembly
02/20/2003US20030033917 Hollow body hole punching apparatus, system, and method
02/19/2003CN2536330Y Rotary die for numerical controlled rotation punch
02/18/2003US6520210 Spool valve
02/13/2003WO2003011494A1 Length-adjustable punch having externally accessible rotation release latch
02/13/2003US20030029218 Punch press
02/12/2003CN1101299C Punching machine
02/06/2003US20030024367 Adjustable punch having externally accessible rotation release latch
02/05/2003EP1281455A2 A sheet fabrication center and methods therefor of optimally fabricating worksheets
02/05/2003EP1281454A2 A sheet fabrication center and methods therefor of optimally fabricating worksheets
02/05/2003EP1281453A2 A sheet fabrication center and methods therefor of optimally fabricating worksheets
02/05/2003EP1281452A2 A sheet fabrication center and methods therefor of optimally fabricating worksheets
02/05/2003CN1100630C Punching-bending machine
02/04/2003US6515395 Sensorless control induction motor rotor slot shapes and fabrication methods
01/2003
01/29/2003EP1279447A2 Punch press
01/29/2003CN1099924C Press device
01/28/2003US6511232 Insert pipe for injection molding, insert pipe processing method, and molded article
01/28/2003US6510762 Member comprising several layers of a flat material and method for making the same
01/23/2003US20030015079 Floating punch holder
01/23/2003US20030015017 Press
01/23/2003US20030015011 Sheet working method, sheet working system, and various devices related to such system
01/21/2003US6508155 Self-centering trim punch
01/19/2003CA2354345A1 Floating punch-holder
01/16/2003WO2003004191A1 Rotary tools for in-line perforation of profiled products
01/16/2003US20030010436 Metal part, and surface treating method thereof
01/15/2003EP1274523A2 Hydroforming flush system
01/15/2003CN2530747Y Punching machine compatible various kind section material
01/14/2003US6507682 Optical switch
01/14/2003US6505535 Method and apparatus for manufacturing a press-formed object
01/08/2003EP1273365A1 Rotary cutting tool for continuous perforating of profiles
01/08/2003CN2529718Y Punching positioner for steel plate make-up machine
01/08/2003CN2529717Y Hole distance adjustable punching die for steel plate make-up machine
01/02/2003US20030000344 Edged ceramic member and a method of manufacturing same
01/02/2003EP1270108A2 Punch press
01/01/2003CN1387965A Multi-shaft perforating device for strap material
12/2002
12/31/2002US6499647 Method for producing contact between two circuit layers separated by an insulating layer
12/27/2002WO2002103726A1 Method and device for machining stacked core
12/27/2002WO2002102528A1 Adjustable length punch assembly
12/26/2002US20020194972 Punch press
12/19/2002WO2002078940A3 Apparatus and programmable method for punching
12/19/2002WO2002045924A9 Holding arrangement for punching tool insert
12/19/2002US20020189420 Adjustable length punch assembly
12/18/2002CN1386056A Bracket system for shelving
12/11/2002CN2524862Y Bus punching device
12/11/2002CN2524861Y Plate oil pressure punching device
12/11/2002CN1383942A Punching method and apparatus of V-ribbed steel net
12/11/2002CN1095705C Device and method for shaping flat articles from blank and use of the device
12/10/2002CA2238159C Modular multipurpose bending machine and its linear positioning system
12/05/2002US20020178976 Bracket system for shelving
12/04/2002CN1383366A Shelf supporting bracket
12/04/2002CN1382538A Method and apparatus for perforating on wall of thin-wall metal pipe
12/03/2002US6490498 Integrated support system for supporting sheet metal machining
11/2002
11/28/2002US20020174698 Process and device for manufacturing holes on the circumference of hollow sections
11/27/2002EP1261111A1 Apparatus and method for fabricating stator core of vehicle alternator
11/27/2002EP1261110A1 Apparatus and method for fabricating stator core of alternator for vehicle
11/27/2002EP1259371A2 V-belt drive for diverting a vertical force of pressure
11/27/2002CN1095098C Blade for controlling developing agent thickness and productive method thereof and electric photographic imaging device
11/26/2002US6484551 Process for manufacturing holes on the circumference of hollow sections
11/21/2002WO2002092255A1 Method and apparatus for improving the fatigue life of components and structures
11/21/2002US20020170337 Press forming machine
11/20/2002EP1258298A1 Sheet working method, sheet working system, and various devices related to such system
11/20/2002EP0995348B1 Clamping device, tool and method of mounting tools
11/19/2002US6481259 Method for precision bending of a sheet of material and slit sheet therefor