Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707)
02/1996
02/15/1996DE4444857C1 Method for forming opening in wall of esp. exhaust pipe
02/13/1996US5490326 Method of retrofitting fluorescent light fixtures and punch and die assembly therefor
02/08/1996WO1996003261A1 Punch unit
02/07/1996EP0480057B1 Interference prevention system of machining head
01/1996
01/31/1996EP0694351A1 Punch unit
01/31/1996EP0694347A1 Turret punch press
01/31/1996CN1115969A Die management method for a punch press machine
01/28/1996CA2154740A1 Punch unit
01/24/1996EP0637275B1 Rotary forming apparatus and method
01/24/1996EP0594654B1 Machine tool with curved drive, especially for stamping and shaping the connecting pins of integrated circuits
01/16/1996US5483814 Apparatus for working metal workpieces
01/16/1996US5483813 Process to make a toroid outer shell from sheet stock
01/09/1996US5481892 Apparatus and method for forming a tubular member
01/08/1996EP0726836A4 Adjustable length punch set assembly
01/04/1996DE19523802A1 Load detection device for press
01/03/1996EP0689885A1 Lateral punching unit
01/03/1996EP0689494A1 Apparatus for detecting fault conditions
12/1995
12/26/1995US5478301 Punch press system
12/20/1995CN1113460A Multichannel synchronous pulse coil printing and punching process for large-size metal sheets
12/13/1995EP0592463B1 Assembly apparatus
12/05/1995US5471901 Press die
12/05/1995US5471730 Method for refurbishing worn turret punch press bores
11/1995
11/29/1995EP0684114A1 Device for manipulating the tools of a press for cutting sheet material
11/29/1995EP0684095A1 Punching tool
11/29/1995EP0523243B1 Punch die set
11/25/1995CA2149967A1 Device for handling the tools of a press that die-cuts a sheet-like matter
11/22/1995EP0550705B1 An apparatus for carrying out an operation on a mechanical workpiece
11/21/1995US5468931 Tool assembly for a punch press having a laser welding apparatus
11/16/1995DE4416843A1 Zigzag feed mechanism
11/15/1995CN1111549A Transport-by-suction type mold
11/14/1995US5465473 Method of providing a toolholder body guide for punch presses
11/08/1995EP0594652B1 Machine tool with curved drive, especially for stamping and shaping the connecting pins of integrated circuits
11/08/1995EP0537275B1 Electromagnetically driven punch press with tools movable in opposite directions and having their momentus balanced at impact
10/1995
10/31/1995US5461761 Process and apparatus for the production of expanded grids
10/26/1995CA2147708A1 Die cutter latching mechanism
10/25/1995EP0678143A1 Metallic wall framing, method and apparatus for producing same
10/25/1995CN1110769A Telescopic vibration absorber
10/24/1995US5460026 Method of and apparatus for the cutting of an opening in a hollow body
10/19/1995WO1995027597A1 Multidirectional cutting tool in a punch press environment
10/19/1995DE19511491A1 Punching holes into hollow workpieces, esp. tubular combustion chambers of gas generators for passive restraining systems in motor vehicles
10/18/1995EP0527805B1 Ball lock punch retainer
10/18/1995CN1110197A Dieless electronic soldering tag manufacturing technology and its equipment
10/17/1995US5458717 Method of shearing thin metal sheet
10/11/1995EP0676279A1 Press forwardly feed die of metallic gasket
10/05/1995DE4411254A1 Blanking press with potentiometric displacement transducer
10/04/1995EP0674957A1 Notching installation with an intermediate alignment of rotor sheets
10/04/1995EP0674956A2 Turret punching press
10/04/1995CN1109393A Apparatus for making self-piercing nuts
09/1995
09/28/1995DE4409658A1 Stamping machine tooling combination
09/27/1995EP0521164B1 Method of restarting operation of punch press machine and numerically controlled device
09/26/1995USRE35039 Method of manufacturing a jack
09/26/1995US5452635 Apparatus for integrated circuit lead-frame punching
09/20/1995EP0672479A1 Punching apparatus for metallic profiles
09/20/1995EP0672478A1 Method for punching from metal strip a blank intended, particularly but not exclusively, for producing a furniture hinge casing
09/19/1995US5451195 Turret punch press with a die exchanging device
09/14/1995WO1995024282A1 Markless press brake material protector
09/06/1995CN1107758A Hot rolled beam and method of manufacture
08/1995
08/31/1995DE4406349A1 Telescopic oscillation damper
08/30/1995CN2206166Y Multiple specification punching combined die
08/29/1995US5445305 Method and device for feeding a band or strip along a straight or zig-zag course to a machine such as one for cutting out of blanks
08/29/1995US5445057 Punching die with a damping member
08/22/1995US5442947 Tooling apparatus and method for high speed production of drawn metal cup-like articles
08/16/1995EP0667194A1 Process to make a toroid outer shell from sheet stock
08/16/1995CN2205263Y Cutting and bending leg mould for diode
08/16/1995CN1106719A Wrapped bushing, in particular for a shock absorber
08/15/1995US5440912 Form and punch apparatus
08/02/1995CN1106172A Method for producing iron core of mlti-phase-conductor motor
07/1995
07/27/1995DE19500614A1 Turret punch press machine
07/26/1995EP0663861A1 Method and machine for producing details from a sheet of metal
07/25/1995US5435216 Method and apparatus for operating a hydraulic ram
07/20/1995WO1995019233A1 Workpiece-deforming tool and die for use in a punch press
07/19/1995EP0663247A1 Apparatus for making self-piercing nuts
07/19/1995EP0662871A1 Rotary apparatus with moveable die
07/13/1995DE4445363A1 Sheet metal working machine
07/06/1995WO1995017985A1 Method and apparatus for producing header tank of heat exchanger
07/05/1995EP0661118A1 Method for punching from metal strip a blank intended, particularly but not exclusively, for producing a furniture hinge casing
07/05/1995CN1104814A Method for manufacturing a stator of a stepping motor
07/04/1995US5429573 Die lift tool for rotary punch machine
07/04/1995US5428982 Machine tool with cam gear, in particular for punching and shaping the lead-outs of integrated circuits
06/1995
06/29/1995DE4444858A1 Hole punching machine with multiple tool groups
06/28/1995EP0659547A1 Breakthrough buffer for presses and control method therefor
06/27/1995US5427349 Adjustable base assembly
06/22/1995WO1995016527A1 Lateral punching unit
06/22/1995DE4343241A1 Method of punching two or more out of centre holes in a tube wall
06/22/1995CA2155944A1 Lateral punching unit
06/21/1995EP0658383A1 Apparatus, module and method of material processing
06/21/1995EP0536412B1 Method of changing tools in punch press machine
06/21/1995CN2201188Y Thin metal plate, thin wall pipe lining hole shaping device
06/20/1995US5425692 Turret punch press
06/20/1995US5425262 Method and an apparatus for carrying out an operation on a mechanical workpiece
06/06/1995US5421086 Method of punching a through opening in a tubular wall
05/1995
05/31/1995EP0655884A1 Transport-by-suction type die
05/30/1995US5419225 Punching die
05/23/1995US5417097 Process and apparatus for press forming
05/23/1995US5416975 Hydraulic puncher
05/23/1995CA1335638C Method and device for controlling the stroke of a press
05/18/1995WO1995013151A1 Hot rolled beam and method of manufacture
05/17/1995CN2197147Y A drilling model for block-board used in highway
05/17/1995CN2197146Y Drilling model on an aluminium door-fram
05/17/1995CN2197145Y Drilling device on press-modle strip with various forms