Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707)
08/1986
08/06/1986EP0189541A2 Punching device
08/06/1986CN85201149U Combined opposite punching-shearing die for punching burr-free hole
07/1986
07/31/1986WO1986004345A1 Ball-point writing instrument containing an aqueous ink composition
07/30/1986CN85203639U Wheel rim once-pass punch
07/29/1986US4602541 Punch press with means for rotating the workpiece and method of using same and tooling therefor
07/22/1986CA1208120A1 Machine tool for working sheet metal
07/15/1986US4600884 Press punching defect detecting device
07/15/1986US4599924 Process and device to apply a bearing eye or a transverse perforation in the clevis of the actuating rod of a brake power booster
07/08/1986US4598950 Tubular reinforcement in particular for a motor vehicle seat
07/01/1986US4597180 Hydraulic punch tool for heat exchangers
07/01/1986US4597168 Method for controlling the operation of a punch press
06/1986
06/17/1986US4594779 Punch and die adapter
06/04/1986EP0183648A1 Press for processing work pieces made from metal
06/04/1986EP0183298A2 Punch press with a number of selectable punches
06/04/1986EP0182917A1 Device for preventing collision of work holder with tool in numerical control system for turret punch press
05/1986
05/20/1986US4589317 Sheet or plate material machining equipment
05/14/1986EP0181269A1 Press tool with processing parts exchangeable while under the press
05/14/1986EP0180823A2 Tool changing device for a punching or nibbling machine
05/13/1986US4587737 Hand punch
05/07/1986EP0180146A2 Punching machine
05/06/1986US4586360 Method of and apparatus for the fine cutting (punching) of articles
05/06/1986CA1204051A1 Self-equalizing piercing machine
04/1986
04/29/1986US4584749 Method for making cages for rolling bearings
04/24/1986WO1986002414A1 System for monitoring the position of a machine component
04/23/1986EP0178640A2 Punching machine and method of application of this punching machine
04/22/1986US4583438 Piercing unit with rotating head
04/15/1986US4582259 Wash arm and method and apparatus for forming the same
04/09/1986EP0176510A1 Apparatus for briefly storing and impulsively releasing mechanical energy.
04/01/1986US4578853 Method of making a stack of electrical sheet-metal lamellae with aligned winding slots, particularly armatures for dynamo electric machines
03/1986
03/26/1986EP0175662A1 Method of manufacturing loop-formed metal foil elements
03/19/1986EP0174758A2 Wash arm and method and apparatus for forming the same
03/11/1986US4575288 Method of and apparatus for working a profiled steel workpiece
03/04/1986US4573338 Method of wheel manufacture for correcting rotational non-uniformity of a pneumatic tire and wheel assembly, apparatus for performing such method and resulting wheel
02/1986
02/27/1986WO1986001135A1 Improvements relating to metal pressing and stamping
02/25/1986CA1201056A1 Turret punch presses
02/19/1986EP0171594A2 Tool with direct drive
02/18/1986US4570327 Die holder mechanism for a stamping machine or the like
02/11/1986US4569621 Method of and an apparatus for manufacturing a ring-pull bottle cap
02/11/1986US4569267 Multitool punch mechanism
02/04/1986CA1200152A1 Deep-drawing and edge-trimming die
02/04/1986CA1200129A1 Small blank feeder and tray former
01/1986
01/29/1986EP0169764A1 Method of making spray arms, especially for washing machines
01/21/1986US4565358 Plate positioning apparatus
01/08/1986EP0167018A2 Web fed die cutting press having automatic 3-axis die registration system
01/07/1986CA1198982A1 Bridge type punch press
12/1985
12/18/1985EP0164490A2 Punch press with a tool magazine
12/17/1985US4558620 Punch retainer
12/17/1985US4558616 Punch press having retractable punching tools
12/05/1985WO1985005298A1 Device for preventing collision of work holder with tool in numerical control system for turret punch press
12/03/1985US4555968 Web fed die cutting press having automatic 3-axis die registration system
12/03/1985US4555966 Punch press with multitool punch assembly
11/1985
11/27/1985EP0162290A1 Punching method
10/1985
10/23/1985EP0158866A2 Machine tool for processing a work piece mechanically and thermally
10/08/1985US4545233 Multitool punching apparatus
10/02/1985EP0156720A1 Method and apparatus for perforating the sides of metallic, deep-drawn work pieces
10/01/1985US4543865 Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks
10/01/1985US4543811 Progressive forming method of product having varied cross-sectional length
10/01/1985US4543722 Slug-splitting punch
09/1985
09/17/1985US4541318 Press for forming sheet metal elements
09/03/1985US4538493 Machine tool for working sheet metal
08/1985
08/27/1985US4537588 Punch device for making window cut-outs
08/06/1985US4532845 Turret punch presses
08/06/1985US4532843 Punch press
08/06/1985US4532794 Stamping and bending machine for manufacturing shaped parts
07/1985
07/23/1985CA1190847A1 Rotary die cutter
07/18/1985WO1985003146A1 Apparatus for controlling movement and positioning of workpiece for machine tool
07/10/1985EP0147787A2 A shock absorber
07/02/1985US4526077 Heavy duty punch
06/1985
06/25/1985US4524661 Bottom die construction
06/25/1985US4524660 Pneumatic-hydraulic driving device for the knockout mechanism associated with the slide of a press-machine
06/25/1985US4524507 Laminated core producing apparatus
06/05/1985EP0143257A1 Tool holding fixture for a punching press, particularly of a turret cutting press for tool changing
06/04/1985CA1188213A1 Blanking apparatus
05/1985
05/28/1985US4519284 Universal sheet metal holder
05/28/1985US4519235 Louver tool
05/21/1985US4517725 Method and apparatus for formation of packs of punched plates useful for spark extinguishing
05/14/1985US4516456 Pallet nibbler
05/14/1985US4516450 Slug-retaining die
05/14/1985US4516448 Punch and ram assembly for punch press
05/14/1985US4516447 Numerically controlled groove-stamping machine
05/09/1985WO1985001896A1 Stamping machine and set of tools for stamping machines
05/08/1985EP0140373A2 Cutting press and tool set for cutting presses
05/08/1985EP0139894A1 Power-operated hand tool with a bipartite implement, especially for stamping
05/08/1985EP0139666A1 Method for fabricating punched pieces with material saving
04/1985
04/30/1985CA1186390A1 Method and apparatus for controlling heat deformations of machine tools
04/24/1985EP0138122A1 Device for accumulating and changing of tools at the revolving implement of a revolving press
04/09/1985US4509395 Process for precision cutting
04/09/1985US4509355 Apparatus for forming a sheet metal product having an opening
04/02/1985US4507995 Arrangement for removing workpieces from a cutting press
04/02/1985US4507947 Punch and winding machine
03/1985
03/26/1985US4506574 Zigzag feeder for blanking machine
03/20/1985EP0134776A2 Press for working metal sheets
03/13/1985EP0133859A1 Method and device for manufacturing electric machine packets made of sheet plates with displaced centre angle, especially for rotor or stator cores
03/13/1985EP0133858A1 Method of and device for manufacturing packets made of sheet plates for magnetic cores of electric machines
03/12/1985US4504181 Method of forming scored metal sheet
03/12/1985US4503741 Bridge type punch press
03/12/1985US4503693 Apparatus for making a hole and a hole-surrounding collar in the side of a pipe
02/1985
02/26/1985US4501523 Apparatus for feeding platelike workpieces to a machine tool
02/26/1985US4501179 Compound die assembly
02/19/1985US4499749 Tubing perforator