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