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)
06/2012
06/06/2012CN202263819U 一种用于钢管开槽的冲压剪切开槽机 A steel slotted punching shear slot machines
06/06/2012CN202263816U 数控转塔冲床 CNC turret punch press
06/06/2012CN102485369A Machining method ensuring precision of stamping parts
06/06/2012CN101722251B Automatic processing machine tool of collecting pipe
05/2012
05/31/2012US20120135264 Method for obtaining an opening in a hollow-body member, and a hollow-body member provided with one or more openings obtained with said method
05/31/2012US20120131978 Stamped dual snowmobile runner and method of manufacture
05/30/2012EP2457675A1 Holder unit for workpieces
05/30/2012EP2198990B1 Die assembly
05/30/2012CN202240454U Automatic welding machine
05/30/2012CN202239593U Sand removal and punching machine for cast piece
05/30/2012CN202239345U Cover separator of finished product combined punch press for manufacturing covers for pop cans
05/30/2012CN202239328U Wheel spoke punched central hole positioning device
05/30/2012CN202239283U Bearing bush blanking mold
05/30/2012CN202239280U Movable trimming and calibrating combined mold
05/30/2012CN202239260U Punching die
05/30/2012CN202239253U Brake forming and cutting die
05/30/2012CN202239209U Automatic production system for gooseneck tunnel of container
05/30/2012CN202239204U Enhanced type elongated male die
05/30/2012CN202239203U Screw nut riveting and stamping die
05/30/2012CN202239202U Punching locating device of copper bar of switch cabinet
05/30/2012CN202239201U Side stamping device
05/30/2012CN202239200U Punching guiding pressing device
05/30/2012CN202239199U Punching die structure
05/30/2012CN202239198U Punching mechanism for large-size cover piece
05/30/2012CN202239197U Shutter die
05/30/2012CN202239196U Mower lower handrail flattened end portion pounding die
05/30/2012CN202239195U Die for perforating
05/30/2012CN202239194U Punching mould of automobile accelerator pedal bracket
05/30/2012CN202239193U Brake sheet punching mould
05/30/2012CN202239192U Punching mould with material returning mechanism
05/30/2012CN202239191U Dustpan puncher
05/30/2012CN202239190U A curved pipe hole-punching device
05/30/2012CN202239189U Fixture for machining liner of wheel excavator
05/30/2012CN202239188U High-speed hydraulic numerical control turret punch press
05/30/2012CN202239187U Punching device for automatic cutting bed
05/30/2012CN202239186U Forming die for irregularly-shaped electric contact
05/30/2012CN202239185U Inside cutting slider mechanism for punching
05/30/2012CN202239184U Fender trimming and separating mold of aerial-cutting scrap cutter
05/30/2012CN202239183U Motorcycle frame pipe fitting end head forming and preprocessing die
05/30/2012CN202239182U Positioning device for large-scale integrated circuit swash channel mold
05/30/2012CN202239181U Punching and shearing tool
05/30/2012CN202239180U Continuous mold for shell
05/30/2012CN202239179U Stamping mold and rotary mold handle thereof
05/30/2012CN202239178U Stamping die
05/30/2012CN202239177U Adjustable blanking and clearance cut-out die
05/30/2012CN202239176U Trimming die formed by die forging on hammer and used for combined left and right support bases on train
05/30/2012CN202239175U Multifunctional convenient stamping die
05/30/2012CN202239174U Device for cutting off connection rib between outer pins of lead frame
05/30/2012CN202239173U Discrete device product punching die
05/30/2012CN202239172U Width regulating mechanism for air conditioner fin longitudinal cutting sub-die
05/30/2012CN202239171U Die with improved lubrication effect
05/30/2012CN202239170U Die with guide pillars convenient to maintain and adjust
05/30/2012CN202239169U Progressive stamping die structure for three-dimensional workpiece
05/30/2012CN202239168U Novel side pressing mould for brake pads
05/30/2012CN202239167U Fillet-chamfering die for busbar
05/30/2012CN202239166U Novel punch die
05/30/2012CN202239165U Stamping type cutting die
05/30/2012CN202239164U Device for positioning and exchanging mould used for notching process
05/30/2012CN202239163U Processing device of binding post
05/30/2012CN202239162U Full-automatic precise cut-off machine for cold-drawing roller carrier shaft
05/30/2012CN202239161U Blanking guide rail structure
05/30/2012CN202239160U Slicing device of lead frame
05/30/2012CN202239159U Height limiting device for lead frame punch forming equipment
05/30/2012CN202239158U Combined punching machine
05/30/2012CN202239157U Double-shaft motor oil supply punching and shearing machine
05/30/2012CN102481689A 液压的挤压装置 Hydraulic pressing device
05/30/2012CN102481615A 用于在中空体构件中获得开口的方法以及设置有利用所述方法获得的一个或更多个开口的中空体构件 Method for obtaining an opening in the hollow body member and is provided with the use of one or more openings of said hollow body member obtained by the method
05/30/2012CN102476139A Punching die structure
05/30/2012CN101636593B Actuator, and unclamp device and processing device with actuator
05/30/2012CN101378859B Method of and tool for fine-cutting pieces with small edge radius and strongly reduced depth in a single step arrangement
05/23/2012EP2454035A1 Method for machining a workpiece on a machine tool
05/23/2012CN202224526U Composite die for punching and straightening connecting rods
05/23/2012CN202224502U Die for punching forgings
05/23/2012CN202224501U Mounting technology board for wedge inside pressing core
05/23/2012CN202224500U Perforation jig for tabs
05/23/2012CN202224499U Swinging blanking mould for uncoiling and blanking production line
05/23/2012CN202224498U Cutting-off die for steel channels
05/23/2012CN202224497U Assembly mechanism for cropping and pushing wafers
05/23/2012CN102470419A 毛刺除去方法及装置 Method and apparatus for removing burrs
05/23/2012CN102463287A 一种新型冲孔凸模 A new punching punch
05/23/2012CN102463286A 圆孔筛板打孔机 Sieve the hole drilling machine
05/23/2012CN102463285A 数控冲床 CNC punch
05/23/2012CN102463284A 空调机铝管悬浮刀切槽装置 Air conditioning tubes suspended knife groove means
05/23/2012CN102463283A 一种摩托车经济型精冲方法 A motorcycle economical method of fine blanking
05/23/2012CN101698214B Fixed bead ring diameter-punching die
05/23/2012CN101409115B Composite metal sheet, method for joining metal sheets, and device for joining metal sheets
05/18/2012WO2012063072A2 Tools
05/17/2012US20120121862 Sheet material with bend controlling displacements and method for forming the same
05/16/2012EP2453025A1 A cutting device for cutting shapes in leathers
05/16/2012CN202219517U Portable punch press for aluminum plastic plate and aluminum veneer
05/16/2012CN102458669A 孔板及其制造方法 Orifice plate and manufacturing method thereof
05/16/2012CN102452101A Structure of novel hole-piercing punch
05/16/2012CN102451871A Device capable of preventing stamping adhesion of stamping die
05/16/2012CN102451870A Seamless pipe fitting cutting process for towing head device
05/16/2012CN101920286B Method for machining blanking blanks of compressor shell
05/16/2012CN101410201B Production method for coned disk spring and clutch unit
05/15/2012CA2622122C Modular tooling system and method
05/10/2012US20120110943 Concrete insert
05/10/2012DE102011054988A1 Lochvorrichtung und Lochverfahren Hole apparatus and method hole
05/10/2012DE102010015067A1 Manufacturing method of bundles of laminations from individual metal sheets for electric machine, involves gradually changing length of feed motion of metal sheets, such that metal sheet portions are variably displaced
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