Patents for B21D 37 - Tools as parts of machines covered by this subclass (19,804) |
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04/29/2009 | CN201227673Y Shell partition mould convenient to demoulding |
04/29/2009 | CN201227672Y Pneumatic composite mould for battle cap drawing |
04/29/2009 | CN201227671Y Automobile roof skylight punched hole switch-over mechanism in perforating die |
04/29/2009 | CN201227668Y Double-action press device of cold bending forming set |
04/29/2009 | CN101417307A New high-strength laser tailor-welded blanks drawing-mold processing technique |
04/29/2009 | CN101417306A Stamping die for producing hollow parts with holes at lateral wall and stamping method thereof |
04/29/2009 | CN101417305A Method for adjusting mold pressure center using nitrogen gas spring |
04/29/2009 | CN101417304A Method for producing sample-piece mold using cement |
04/29/2009 | CN101417303A Die clamp |
04/29/2009 | CN101417300A Tube liquid-filling forming method and module structure thereof |
04/29/2009 | CN101417299A Electric impulse auxiliary superplastic forming device and method |
04/29/2009 | CN101417298A Stamping processing method with rolling effect |
04/29/2009 | CN100482970C Cylindrical bearing member and method and apparatus for manufacturing same |
04/29/2009 | CN100482376C Cement type surface simple drawing mold |
04/29/2009 | CN100482374C Arrangement for changing the position of roll-changing guided groove of the flattening roller |
04/28/2009 | US7526360 Method and apparatus for designing molds |
04/22/2009 | EP2049279A2 Method and apparatus for creep forming of and relieving stress in an elongated metal bar |
04/22/2009 | CN201224197Y Improved revolving stamping die |
04/22/2009 | CN201224196Y Stamping die with protector |
04/22/2009 | CN201223920Y Chain-plate continuous automatic molding machine |
04/22/2009 | CN201223903Y Bending mould |
04/22/2009 | CN201223902Y Bending stamping mould |
04/22/2009 | CN201223901Y Pneumatic double-blank pressing sheet metal bending mould |
04/22/2009 | CN201223900Y Eccentric wheel blank pressing apparatus for stamping die |
04/22/2009 | CN201223899Y Core component roller of refrigerator production mould |
04/22/2009 | CN201223895Y Punching processing device for saving motor stator and rotor material |
04/22/2009 | CN201223894Y Gear ring locating type open type turret punch press |
04/22/2009 | CN101415523A Cartridge for holding a punch and a die for machine tool |
04/22/2009 | CN101415522A Cartridge for holding a punch and a die for machine tool |
04/22/2009 | CN101412065A Technique for processing magnesium alloy case |
04/22/2009 | CN101412062A Triangle fixing mechanism of rotating bending drawframe |
04/22/2009 | CN101412061A U-shaped flexure mode |
04/16/2009 | WO2009048096A1 Molding apparatus |
04/15/2009 | CN201220256Y Device for mouth stretching of end of metal pipe fittings |
04/15/2009 | CN201220255Y Atomizing cooling method for straightener roll of straightener |
04/15/2009 | CN201220254Y Grading stamping mould with precise initial location |
04/15/2009 | CN201220253Y Stamping mould |
04/15/2009 | CN201220252Y Calendering mould for workpiece having complicated shape |
04/15/2009 | CN101409115A Composite metal sheet, method for joining metal sheets, and device for joining metal sheets |
04/15/2009 | CN101406920A Former of adjustable wire pole anchor ear |
04/15/2009 | CN101406919A Multilevel composite floating type wedge mechanism |
04/15/2009 | CN101406918A Punching machine mold of metal button and method for processing metal button using the mold |
04/15/2009 | CN101406917A General-purpose drawing mold of single/double action press |
04/15/2009 | CN101406915A Mold and method for pressing incision of product with inner necking |
04/15/2009 | CN101406914A Micro-perforating die |
04/15/2009 | CN101406913A Electromagnetic forming device of sheet metal |
04/14/2009 | US7516640 Method and apparatus for forming a blank as a portion of the blank receives pulses of direct current |
04/14/2009 | US7516639 Method of making a structure having an optimized three-dimensional shape |
04/08/2009 | EP1868750A4 Method for straightening an eccentric shaft |
04/08/2009 | CN201217046Y Die for manufacturing code-clipping nail |
04/08/2009 | CN201217035Y Punching mould structure |
04/08/2009 | CN201217034Y Side-punch die frame |
04/08/2009 | CN201217033Y Interlock structure for mould of tube-bending machine |
04/08/2009 | CN201217030Y Double-curved surface forming lapping machine |
04/08/2009 | CN201217026Y Multi-angle rolled steel bending machine |
04/08/2009 | CN201217024Y Upright post straightening press |
04/08/2009 | CN101402123A Punching and riveting molding method and mould |
04/08/2009 | CN101402120A Flanging eyelet work dual-movement composite mold |
04/08/2009 | CN101402119A Deep draw mould without flange edge die plate |
04/07/2009 | US7513137 Method of making a shaped sheet-metal part |
04/07/2009 | US7513135 Manufacturing device, particularly a folding press, having electronic tool detection |
04/02/2009 | WO2009041412A1 Cemented carbide tool for fine machining |
04/02/2009 | US20090084154 Spline member manufacturing apparatus and manufacturing method |
04/01/2009 | EP1795047A4 Metal forming apparatus and process with resistance heating |
04/01/2009 | CN201214121Y Rotating cam sliding fitting guide plate |
04/01/2009 | CN201214120Y Mold heating jacket |
04/01/2009 | CN201214119Y Secondary drawing composite mould |
04/01/2009 | CN201214117Y Gradually forming pressure head of slab with controllable pressure and forming apparatus thereof |
04/01/2009 | CN201214116Y Rolling mills for roller milling corrugated plate |
04/01/2009 | CN101396705A Metal barrel flanging device |
04/01/2009 | CN101396703A Improved molding main-machine structure |
04/01/2009 | CN100473472C Method for forming metallic glass |
04/01/2009 | CN100473471C Method for forming edging angle steel connecting oil tank vault and wall plate and special-purpose equipment |
03/26/2009 | WO2009039007A1 Shell press, and die assembly and associated method therefor |
03/26/2009 | WO2009038998A2 Staged tooling technology |
03/26/2009 | WO2009038133A1 Spring product manufacturing line |
03/26/2009 | WO2007133548A3 Method and apparatus for hot forming elongated metallic bars |
03/26/2009 | US20090078021 Metal sheet pressing method |
03/26/2009 | CA2639773A1 Method and device for the production of a stamping with almost smooth cutting and enlarged functional surface |
03/25/2009 | EP1761358B1 Tooling system with array of longitudinally movable elements |
03/25/2009 | EP1701821B1 Reconfigurable workpiece support |
03/25/2009 | CN201211543Y Air cylinder driving wedge mechanism |
03/25/2009 | CN201211540Y Special equipment of collecting tube drawing technology |
03/25/2009 | CN101394950A Hot-forming die, press-forming device, and hot press-forming method |
03/25/2009 | CN101391276A Bending method of large-size channel steel and special bending forming die |
03/25/2009 | CN101391275A Inner-tension deformation bender |
03/25/2009 | CN101391273A Straightening machine of inner-tension deformation section steel |
03/19/2009 | US20090071223 Staged Tooling Technology |
03/19/2009 | US20090071220 Equipment for producing a closed-section cross-member, comprising an adaptable-length punch and/or matrix, and corresponding production method |
03/19/2009 | US20090071217 Composite Fabrication Apparatus and Method |
03/18/2009 | EP2036630A1 Method and device for lubricating a tool and workpiece when cutting |
03/18/2009 | EP2035163A1 Discrete die |
03/18/2009 | CN201208634Y Slide block dovetail slot lifting and guiding apparatus of crooked line machine |
03/18/2009 | CN201208626Y Punching die with elastic concavo-convex mould |
03/18/2009 | CN201208625Y Curved surface processing mould |
03/18/2009 | CN101386047A Method and device for lubricating a tool and workpiece when cutting |
03/18/2009 | CN101386046A U shaped beam three-face punching technique and production device using the technique |
03/18/2009 | CN101386044A Method and device for fine cutting and forming of a workpiece |
03/18/2009 | CN100469483C Method for fixing radiator fan on the soldering pipe, device and products thereof |
03/18/2009 | CN100469481C Holder unit and hemming device with the same |