Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 28 - Shaping by press-cutting; Perforating
Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707)
12/2012
12/05/2012CN101528377B Tool and machine tool for working plate-like workpieces, in particular metal sheets
11/2012
11/29/2012WO2012160886A1 Plate material processing system
11/29/2012WO2012160039A1 Machine tool in the form of a press for machining workpieces, in particular metal sheets
11/29/2012US20120297848 Marking method, marking tool, and punch press machine
11/29/2012US20120297724 Saddle hanger for a structure
11/29/2012DE102011102288A1 Device for manufacturing spur gear that is utilized in e.g. automotive industry for vehicle gear box, has ejector performing screw movement in aperture of cutting plate with linear portion that is rectified for stamper movement
11/28/2012EP2527058A1 Machine tool in the form of a press for processing workpieces, in particular metal sheets
11/28/2012CN202561756U Metal cellular heating element having different mesh numbers and used in gas appliance
11/28/2012CN202555681U Bending machine with multi-station punching dies
11/28/2012CN202555680U Steel pipe punching rotating clamping claw mechanism
11/28/2012CN202555679U Swaging punch
11/28/2012CN202555678U Detachable hole punching die
11/28/2012CN202555677U Tail pushing mechanism of steel pipe punching machine
11/28/2012CN202555676U Automatic positioning punching device for husk of solar water tank
11/28/2012CN202555675U Removal mechanism for burr in notch of trimming mould of leather cup insert of automobile engine
11/28/2012CN202555674U Rotary punching type box inner container punching mold
11/28/2012CN202555673U Zigzag anticorrosion trimming die
11/28/2012CN202555672U Four-corner anticorrosive wear-resistant trimming die
11/28/2012CN202555671U Anti-corrosion trimming die with six corners capable of being disassembled
11/28/2012CN202555670U All-round side-cutting stamping die for improving appearance of molded product
11/28/2012CN202555669U Sawtoothed trimming die
11/28/2012CN202555668U Wear-resistant trimming die with four detachable corners
11/28/2012CN102802831A Multiple punch and die assembly
11/28/2012CN102794351A Hole drawing and equal thickness machining technology for plate
11/28/2012CN102794350A Blank fine cutting mould for rolling blade and processing method of blank fine cutting mould
11/28/2012CN102794349A Frock clamp for punching and machining metal piece
11/28/2012CN102179455B Fanning strip receiving device and method
11/26/2012DE202011104646U1 Vorrichtung zur Bearbeitung, insbesondere zum adiabetischenTrennen, eines Werkstücks Apparatus for processing, in particular for adiabetischenTrennen, a workpiece
11/22/2012WO2012157260A1 Punch unit for punching thin sheet metal, and thin sheet metal punching apparatus provided with punch unit
11/22/2012WO2012099347A3 Apparatus for press blanking and packaging member plate
11/21/2012EP2524743A1 Blanking die with device for replacing at least one punch
11/21/2012CN202539458U Riveting mold of metal hair pin
11/21/2012CN202539348U Special-shaped rolled pipe forming device
11/21/2012CN202539343U Punching head of punching device
11/21/2012CN202539342U Multistage cutting edge punch
11/21/2012CN202539341U Die for punching concave board sieve
11/21/2012CN202539340U Self-centering square hole punch for knife angle blade
11/21/2012CN202539339U Mold of cross shearing machine
11/21/2012CN202539338U Punching machine and punching devices
11/21/2012CN202539337U Punching mechanism in numerical control punching shear line equipment for silicon sheet
11/21/2012CN202539336U Perforating machine
11/21/2012CN202539335U Automatic cleaning device for blanking waste
11/21/2012CN202539334U Punching device for car anti-collision beam
11/21/2012CN202539333U Non-contact cutting die for numerical control turret punch press
11/21/2012CN202539332U Timing driven sprocket fine blanking die
11/21/2012CN202539331U Punching head
11/21/2012CN202539330U Punching mould of upright of vehicle door frame
11/21/2012CN202539329U Blanking mould for central hole of part
11/21/2012CN202539328U Rubber containing frame for stamping die
11/21/2012CN202539327U Mould for bilaterally blanking product
11/21/2012CN202539326U Manual punching machine
11/21/2012CN202539325U Automobile anti-collision beam head-cutting machine
11/21/2012CN202539324U Die cutting machine for automotive anti-collision beam
11/21/2012CN202539323U Multifunctional electrode piece punching device
11/21/2012CN202539322U Silicon sheet numerical control punching shear wire device
11/21/2012CN102791398A Tooling assembly, blanking tool therefor and associated method
11/21/2012CN102785390A Numerical control worm and gear punching machine
11/21/2012CN102784837A Pipe wall punching device
11/21/2012CN102784836A Multi-punch punching machine
11/21/2012CN102784835A Movable laminating mechanism used on notching press
11/21/2012CN102784834A Channel steel cutting-off die
11/21/2012CN102172815B Hot extrusion forming method for inner hexagonal bolt blank of titanium alloy
11/21/2012CN101386047B Method and device for lubricating a tool and workpiece when cutting
11/21/2012CN101386045B Method and device for manufacturing stamping parts with a larger functional area
11/21/2012CN101386044B Method and device for fine cutting and forming of a workpiece
11/14/2012EP2522443A2 Method for defining a punching tool set for punching of work pieces and punching machine with such a punching tool set
11/14/2012CN202528273U Batch punching pin for punching machine
11/14/2012CN202527587U Channel steel leg punching die for hydraulic combined punching and shearing machine
11/14/2012CN202527586U U-bar waist punching mould for hydraulic combined punching and shearing machine
11/14/2012CN202527578U Automatic punching die
11/14/2012CN202527577U Device for automatically adjusting stop position of numerical control notching press slide block
11/14/2012CN202527576U Material support structure of punching die
11/14/2012CN202527575U Novel shearing die for hydraulic combined punching and shearing machine
11/14/2012CN202527574U Side edge blanking anti-scrap-jumping structure
11/14/2012CN202527573U Combined blanking male die
11/14/2012CN102781603A Punching method, method for manufacturing press-formed article, punching die, and press-formed article
11/14/2012CN102773334A Stamping die for hole sites of rear covers of notebook computer
11/14/2012CN102773333A Integrator bracket punching die
11/14/2012CN102773332A Rocker arm type hydraulic tappet housing inner wall outward punching type punching equipment and method
11/14/2012CN102773331A High-accuracy numerical control copper bar punching machine
11/14/2012CN102773330A Punching mechanism of double feeding belts
11/14/2012CN102773329A Intelligent cutting device of louver blade
11/14/2012CN101905265B Scrap-bouncing preventing method for press tool
11/14/2012CN101675264B Method of producing coned disc spring, and clutch device
11/14/2012CN101362171B Piercing device of hydroforming mold
11/08/2012US20120283059 Elements of vehicular continuously variable transmission belt, and method of manufacturing the elements
11/08/2012US20120279369 Punch press
11/08/2012DE102011075254A1 Cutting tool for stamping punching machine, has cylindrical insert having axial opening, which is arranged in opposite to punch such that opening is coaxial with recess of cutting die
11/08/2012DE102011075245A1 Cutting tool for stamping machine for stamping work piece e.g. tailored blank, has vibration generation unit provided on cutting die and stamping unit and exciting cutting die and stamping unit with predetermined frequency range
11/07/2012CN202522436U Automatic sample punching machine
11/07/2012CN202516925U Cutting and punching die
11/07/2012CN202516921U Special die support for punching to lamp shade of projecting lamp
11/07/2012CN202516920U Screw hole punching machine for automotive lower guard board
11/07/2012CN202516919U Punching machine
11/07/2012CN202516918U Continuous multi-direction punching device for section materials
11/07/2012CN202516917U Die capable of shearing in half-cold and half-hot state
11/07/2012CN202516916U Stamping die for iron core
11/07/2012CN202516915U Round steel bar heading-off mechanism for plasma cutting machine
11/07/2012CN202516914U Punching device for manufacturing shielding copper sheet of semiconductor plastic-packaging high-frequency pre-heater
11/07/2012CN102764847A Precision forming method of straight/helical tooth cylindrical gear
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