| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 08/17/2011 | CN102157720A Forming machining method of battery pole piece |
| 08/17/2011 | CN102152127A Automatic production line for shells of electrical appliances |
| 08/17/2011 | CN102152072A Method for machining porous-surface heat-exchange pipe for boiling heat-transfer equipment |
| 08/17/2011 | CN102151754A Multifunctional combined punching die |
| 08/17/2011 | CN102151748A Numerical control punching lathe |
| 08/17/2011 | CN102151747A Three-station punching machine |
| 08/17/2011 | CN102151746A Blanking die for copper bar lugs |
| 08/17/2011 | CN102151745A Blanking die for hood-type clamping piece lifting plate |
| 08/17/2011 | CN102151744A Die for blanking corner notch of case cover |
| 08/17/2011 | CN102151743A Cover type clamp reinforcing rib blanking die |
| 08/17/2011 | CN102151742A Thick plate blanking mould |
| 08/17/2011 | CN102151741A Multi-blade fin forming mould for fin heat exchanger |
| 08/17/2011 | CN102151740A Handheld portable punching machine |
| 08/17/2011 | CN102151739A Flat steel heald stamping production line |
| 08/17/2011 | CN101653804B Mesh mould for forming different kinds of mesh distributed structure |
| 08/16/2011 | US7998289 Press-hardened part and method for the production thereof |
| 08/16/2011 | US7997114 Method of stamping multilayer sheets |
| 08/10/2011 | EP1692414B1 Fine-blanking device |
| 08/10/2011 | CN201923973U 冲切式金属片粘贴机 Punched metal sheet pasted machine |
| 08/10/2011 | CN201921943U 冲簧模具 Red spring mold |
| 08/10/2011 | CN201921936U Burr removal mold |
| 08/10/2011 | CN201921927U 数控冲床切边模具的上模 CNC punch press die trimming |
| 08/10/2011 | CN102145360A Special-shaped punch head of automobile cover stamping die |
| 08/10/2011 | CN101642789B A method of forming a boss in a plate and plate with boss bearing periodic fatigue load in use |
| 08/09/2011 | US7992420 Method for the production of a housing of a brake caliper |
| 08/04/2011 | WO2011093435A1 Marking method, marking tool, and punch press machine |
| 08/03/2011 | CN201913677U 冲孔落料装置 Punching punching apparatus |
| 08/03/2011 | CN201913148U 一种便于出料的冲孔模具 A method for facilitating the discharge of punching dies |
| 08/03/2011 | CN102139314A Flattening and forming punching dies for machining novel mop of sedan seat |
| 08/03/2011 | CN102139313A Flattening and forming punch mould for machining car seat and mop |
| 08/03/2011 | CN102139310A Adjustable punch head structure |
| 08/03/2011 | CN102139309A Numerical control punching machine |
| 08/03/2011 | CN102139308A Numerical control punching machine tool |
| 08/03/2011 | CN102139307A Full-automatic feeding hot punching device |
| 08/03/2011 | CN102139306A H-shaped steel section bar blanking method and mould |
| 08/03/2011 | CN101400460B Punch, apparatus and method for forming opposing holes in a hollow part, and a part formed therefrom |
| 08/02/2011 | CA2583858C Automated sidewall assembly machine |
| 07/28/2011 | US20110180359 Progressively stamped clip-on noise damping shim for friction assembly, and method and apparatus for producing clip-on noise damping shim |
| 07/28/2011 | DE10261748B4 Stanzwerkzeug Punch |
| 07/28/2011 | DE102010005771A1 Verbesserung der Ebenheit durch Freischnitte an den Prägen Improve the flatness by free cuts on the embossing |
| 07/27/2011 | EP2347837A1 Multiple punching head with manual punch selection |
| 07/27/2011 | CN201906772U Die structure capable of punching double holes on rectangular pipe |
| 07/27/2011 | CN201906767U Arc punching mould |
| 07/27/2011 | CN102133597A 45-degree corner cutting and punching mould for doorframe semi-finished product |
| 07/27/2011 | CN101623730B Punching and riveting mould of combined hinge connecting sheet |
| 07/22/2011 | CA2713295A1 Fence post cap |
| 07/21/2011 | WO2011086004A1 Method for producing a metal component |
| 07/21/2011 | US20110174127 Method for press punching a hole in sheet metal and press die |
| 07/21/2011 | US20110174125 Method of shearing thin plate |
| 07/21/2011 | US20110174118 Gear unit and molding method of the same and applied ratchet wheel wrench |
| 07/20/2011 | EP2345489A2 Explosion forming system |
| 07/20/2011 | CN201900201U Pre-punching mould for processing burr of groove-shaped screw nut |
| 07/20/2011 | CN201900183U Beating and forming punching mould for machining seat and mop of car |
| 07/20/2011 | CN201900177U Positioning structure for small hole punching die of gear part |
| 07/20/2011 | CN201900176U Barb type slide wedge mechanism |
| 07/20/2011 | CN201900175U Adjustable punch structure |
| 07/20/2011 | CN201900174U Mould for trimming ports of parts such as outer covers |
| 07/20/2011 | CN201900173U Automatic slicing machine of lead frame |
| 07/20/2011 | CN102125955A Improved punching device for tapered roller bearing retainer |
| 07/20/2011 | CN102125954A Punching method convenient to discharge |
| 07/20/2011 | CN101578033B Shielding device and manufacturing method thereof |
| 07/20/2011 | CN101564744B Split type variable-diameter punch device for removing inner flash in drill stem |
| 07/14/2011 | WO2011029967A3 Punch for stamping and cutting processes |
| 07/13/2011 | EP2343137A2 Cam device for a press machine |
| 07/13/2011 | EP2242595B1 Printing plates |
| 07/13/2011 | CN201895036U Combined stamping die |
| 07/13/2011 | CN201895035U Quick switching mechanism for punching |
| 07/13/2011 | CN102120239A Lifting punching device |
| 07/13/2011 | CN102120238A Numerically controlled punching machine tool |
| 07/13/2011 | CN102120237A Automatic feeding punching machine |
| 07/13/2011 | CN102120236A Machining method for precision punching forming of fine toothed parts |
| 07/13/2011 | CN101500725B Wedge drive with positive-action return device |
| 07/12/2011 | US7975587 Punching tool |
| 07/12/2011 | US7975523 Alignment ring for a punch |
| 07/06/2011 | CN201889354U Washing machine inner drum mould |
| 07/06/2011 | CN201889353U Cold punching die for handling hole of external thread protection sleeve of oil pipe |
| 07/06/2011 | CN201889352U Automatic punching device |
| 07/06/2011 | CN201889351U Punching molding product device of punching bending workpiece |
| 07/06/2011 | CN201889350U Die used for blanking mesh-shaped thick plate |
| 07/06/2011 | CN201889349U Cutter head of trimming mold |
| 07/06/2011 | CN201889348U Battery thin material module punching device |
| 07/06/2011 | CN102114647A Special machine for manually punching radar and license holes of automotive interior part and bumper |
| 07/06/2011 | CN102114507A Numerical control (NC) punching machine tool |
| 07/06/2011 | CN101537459B Corrugated sheet pressing die and corrugated sheet production system |
| 07/05/2011 | CA2487877C Improved stripper plate retention system |
| 06/30/2011 | WO2011078191A1 Cutting device |
| 06/30/2011 | WO2011077582A1 Element for belt for stepless transmission, and method of manufacturing same |
| 06/30/2011 | WO2011077557A1 Method for manufacturing magnetic steel sheet having nonmagnetic area, and punch/press apparatus |
| 06/29/2011 | EP2338619A2 A sheet fabrication center and methods therefor of optimally fabricating worksheets |
| 06/29/2011 | CN201880783U Halogen-free electronic circuit board stamping die |
| 06/29/2011 | CN201880782U Device for cutting allowance of irregular port of thin-wall box-shaped piece for once |
| 06/29/2011 | CN201880781U Rotary disc type bolt trimming machine |
| 06/29/2011 | CN102112249A Sheet shearing method |
| 06/29/2011 | CN102112248A Explosion forming system |
| 06/29/2011 | CN102107242A Material falling prevention-type stamping equipment |
| 06/29/2011 | CN102107241A Device for separating semiconductor package from packaging strap |
| 06/29/2011 | CN102107213A Production process of petroleum pipe |
| 06/29/2011 | CN101823097B Blade fixing structure of slit sub-die |
| 06/29/2011 | CN101790284B PCB (printed circuit board) punch forming method and composite punch die |
| 06/29/2011 | CN101639143B Processing method of pipe joint sealing structure |