| Patents for B21D 22 - Shaping without cutting, by stamping, spinning, or deep-drawing (12,324) |
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| 08/11/2004 | CN2631661Y Open gas-liquid pressurizing punch press |
| 08/11/2004 | CN1519965A Cathode can for battery and its mfg. meethod |
| 08/11/2004 | CN1519138A Metallic artware dragon with thin wall and its manufacturing method |
| 08/05/2004 | US20040148997 Shaping method and apparatus of thin metal sheet |
| 08/04/2004 | CN2629871Y Drun type part shaping device |
| 08/04/2004 | CA2456745A1 Anode can for battery and manufacturing method thereof |
| 08/03/2004 | US6769280 Real-time draw-in sensors and methods of fabrication |
| 07/29/2004 | WO2004062829A1 Pattern transfer container and method of manufacturing the same |
| 07/28/2004 | CN2628175Y Full-automatic powder metallurgy formation punching machine |
| 07/28/2004 | CN1515368A Lower cylinder of hydraulic duoble-action stretching machine |
| 07/28/2004 | CN1515367A Beading mechanism of hydraulic double-action stretching machine |
| 07/28/2004 | CN1515366A Forming method of fastening portion of metal plate body |
| 07/28/2004 | CN1159721C Method of press-working frame plate on which disk driving motor is arranged |
| 07/27/2004 | US6766675 Spindle mechanism |
| 07/22/2004 | US20040142201 Metallic porous body |
| 07/22/2004 | US20040139610 Method for manufacturing aluminum alloy wheel |
| 07/22/2004 | DE10300630A1 Tiefziehwerkzeug Thermoforming mold |
| 07/22/2004 | DE10300027A1 Pneumatic press system has a liquid layer between the piston and the workpiece to prevent thermal damage |
| 07/21/2004 | CN2626643Y Concave convex characters stamping die |
| 07/21/2004 | CN1513619A Processing method of high precision working heady duty vehicle carriage longitadinal beam |
| 07/20/2004 | US6763739 Hollow rack shaft and manufacturing method thereof |
| 07/20/2004 | US6763587 Manufacturing method of component part for variable capacity turbine, and the structure |
| 07/15/2004 | US20040134251 Method and device for manufacturing slip prevention material of construction machinery |
| 07/15/2004 | US20040134249 Method and device for making intricately-shaped axisymmetric parts from hardly deformable polyphase alloys |
| 07/15/2004 | DE10258492A1 Tubular workpiece manufacturing process, e.g. for shock absorber piston rod, involves using tool on transition region to produced at least two working segments |
| 07/14/2004 | EP1437458A1 Non-slip structure |
| 07/14/2004 | EP1189711B1 Method of manufacturing a dome from an undersized blank |
| 07/14/2004 | CN2625070Y Variable magnetic force extrusion press |
| 07/14/2004 | CN1513094A Cam block and method for manufacturing the same |
| 07/14/2004 | CN1511658A Method for producing heat exchanger fin and complete mould for producing said fin |
| 07/14/2004 | CN1511656A Fine blanking method and device |
| 07/13/2004 | US6761055 Drive for a hold down assembly of a can bodymaker a method of use thereof |
| 07/08/2004 | WO2004017117A3 High precision optical fiber alignment components |
| 07/08/2004 | US20040132628 External lubrication using mixture of oil and wax in interior high-pressure forming; between molding and workpiece |
| 07/08/2004 | US20040129709 Container end & forming systems therefor |
| 07/08/2004 | US20040129052 Method of reducing cycle time for metal forming |
| 07/08/2004 | US20040129050 Contact surface structure of bending die |
| 07/08/2004 | DE10359018A1 Metallischer poröser Körper Metallic porous body |
| 07/07/2004 | EP1435269A1 Method of reducing cycle time for metal forming |
| 07/07/2004 | CN2623373Y Socket joint type anti-rotary drill drift |
| 07/06/2004 | US6758077 Manufacturing method of cylinder |
| 07/01/2004 | DE10261084A1 Flow forming ring for making hollow metal bodies such as drink cans consists of reinforcing ring with deforming ring inside it, round which is support reinforcement |
| 06/30/2004 | EP1433546A1 Production method and device for producing an annular container for an electric winding for assembly to a pulley of a motor vehicle air conditioning system |
| 06/30/2004 | EP1432606A2 Truck cab space frame |
| 06/30/2004 | EP1322436B1 Cold forming of splined transmission hubs |
| 06/30/2004 | CN2621854Y Automatic punch press for producing O series retainer |
| 06/30/2004 | CN1509367A Nonslip structure |
| 06/30/2004 | CN1507968A Magnesium alloy plate working method and special apparatus |
| 06/30/2004 | CN1507966A Metal porous body |
| 06/29/2004 | US6755069 Method and tooling for z-axis offset of lead frames |
| 06/29/2004 | US6755068 Ironing-deep drawing process |
| 06/24/2004 | US20040118059 Non-slip structure |
| 06/24/2004 | DE202004006708U1 Machine for making grooves in headrest tubes for motor vehicle seats has punch with alignment and working faces to engage surface of tube |
| 06/24/2004 | DE10256639A1 Schmierstoffbeschichtetes Metallblech mit verbesserten Umformeigenschaften Lubricant-coated metal sheet with improved formability |
| 06/23/2004 | CN2621096Y Mould for manufacturing super-precision aluminium magnetic roller sleeve |
| 06/23/2004 | CN1507524A Non-slip material |
| 06/23/2004 | CN1507376A Method and device for manufacturing slip prevention material of construction machinery |
| 06/17/2004 | WO2004050808A2 Lubricant coated sheet metal with improved deformation properties |
| 06/17/2004 | US20040112109 Liquid ejection head, and method of manufacturing the same |
| 06/15/2004 | US6751572 Auto-correcting part measurement system |
| 06/15/2004 | US6748787 Method of producing workpiece having irregular cross section by stamping thin plate into thick plate |
| 06/15/2004 | US6748780 Numerically controlled forming method |
| 06/10/2004 | US20040109911 Device for treating flat material |
| 06/10/2004 | US20040107759 Forging work method, and method of manufacturing liquid ejection head using the same |
| 06/09/2004 | EP1425120A1 Device for producing a shaped body that has a concentric hub |
| 06/09/2004 | CN1503076A Circular-shaped metal structure and method of fabricating the same |
| 06/08/2004 | US6745609 Sheet metal forming die assembly with textured die surfaces |
| 06/08/2004 | US6745468 Method of manufacturing a boat steering wheel with finger grip indentations |
| 06/03/2004 | WO2004045786A1 Method and apparatus for spinning to a constant lenght |
| 06/03/2004 | DE10254084A1 Verfahren zur Herstellung eines Verbundmaterials umfassend einen Kern aus Magnesium A process for producing a composite material comprising a core of magnesium |
| 06/02/2004 | EP1424515A1 Spun pulley with thick hub |
| 06/02/2004 | EP1424147A2 Circular-shaped metal structure and method of fabricating the same |
| 06/02/2004 | CN2618697Y Quick changing device for pressing mold boss mold |
| 06/02/2004 | CN2618696Y Large tonnage digital control turrent punching machine body |
| 06/02/2004 | CN2618695Y Movable anvil type large tonnage digital control turret punching machine |
| 06/02/2004 | CN2618694Y Travel distance regulating member of digital control punching mold rotary head press |
| 06/01/2004 | US6742376 Method and apparatus for manufacturing structures with improved fatigue life |
| 05/27/2004 | WO1999062765A8 Can bottom having improved strength and apparatus for making same |
| 05/27/2004 | US20040098855 Circular-shaped metal structure and method of fabricating the same |
| 05/26/2004 | EP1422385A1 METHOD OF MANUFACTURING TURBINE FRAME OF VGS TYPE TURBO CHARGER, TURBINE FRAME MANUFACTURED BY THE METHOD, EXHAUST GAS GUIDE ASSEMBLY OF VGS TYPE TURBO CHARGER USING THE TURBINE FRAME, AND VGS TYPE TURBO CHARGER INCORPORATING THE EXHAUST GAS GUIDE ASSEMBLY |
| 05/26/2004 | CN1500037A Device for treating flat material |
| 05/25/2004 | US6739647 Tailored blank article and manufacturing method of the same |
| 05/20/2004 | US20040093922 Method and apparatus for spinning to a constant length |
| 05/19/2004 | EP1419831A1 Method for producing a metal can body |
| 05/13/2004 | WO2004039511A1 Methods of and apparatus for pressure-ram-forming metal containers and the like |
| 05/13/2004 | WO2004001248A3 Splined clutch hub and method of making same |
| 05/13/2004 | WO2002034423A8 Method of reducing slot width in slotted tubular liners |
| 05/13/2004 | US20040091215 Stamping system for manufacturing high tolerance parts |
| 05/13/2004 | DE10345934A1 Metallblechzuschnitt zum Formen und Verfahren zur Herstellung desselben The same sheet metal blank for forming and process for preparing |
| 05/12/2004 | CN2614812Y Automatic spinning stretcher |
| 05/12/2004 | CN2614811Y C type punching machine stroke drive controlling device |
| 05/12/2004 | CN2614810Y Puncher roller feeding apparatus structure |
| 05/12/2004 | CN1495024A Liquid spray nozzle and its making method |
| 05/06/2004 | WO2004037460A1 Method and apparatus for reducing wrinkle formation in deep drawing |
| 05/06/2004 | WO2004037459A1 Method and device for stamping notches onto hollow pipes |
| 05/06/2004 | US20040083786 Sheet metal forming die assembly with textured die surfaces |
| 05/06/2004 | US20040083595 Method of manufacturing a hollow shaft having a flange at one end thereof |
| 05/06/2004 | EP1414613A1 Hydraulic piston consisting of rolled sheet metal, method for producing the same and an intermediate product obtained by said method |
| 05/06/2004 | DE202004002115U1 Vorrichtung zur Herstellung eines Formteils, sowie Formteil, insbesondere ein Behälterboden An apparatus for producing a molded article, and molding, in particular a container bottom |
| 05/06/2004 | DE10250045A1 Verfahren und Vorrichtung zum Prägen von Kerben an Hohlrohren Method and apparatus for embossing grooves on the hollow pipes |