Patents for B21D 21 - Combined processes according to methods covered by groups (343)
06/2009
06/10/2009CN201253655Y Draw bending straightener
06/03/2009EP2064509A1 Heat transfer surfaces with flanged apertures
05/2009
05/26/2009US7538298 Gas removing apparatus for heat pipe
05/20/2009CN100488655C Forming device of forming machine for special pipe end
04/2009
04/23/2009US20090104501 Fuel Cell System for Generating Electric Power for a Vehicle Constructed of Modules
02/2009
02/04/2009CN100457312C Manufacturing process and end product of a wire-like rectangular section
01/2009
01/27/2009US7480992 Cooling plate and manufacturing method thereof, and sputtering target and manufacturing method thereof
01/01/2009US20090000856 Process of endforming a tubular assembly
12/2008
12/23/2008US7467466 Method for sealing a heat pipe
12/10/2008CN201161265Y Primary bending, correcting mechanism for hardware punch parts manufacture
12/04/2008US20080295451 Blank for Spacer for Insulating Window Unit, Spacer for Insulating Window Unit, Insulating Window Unit and Method For Manufacturing a Spacer
12/03/2008EP1996738A2 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom
11/2008
11/19/2008CN101306446A Shaping device in a special pipe end shaper
11/05/2008CN201143531Y Angle-bar manufacturing equipment
10/2008
10/08/2008CN100423864C Apparatus for processing U-shape metal pipe and processing method
10/07/2008US7430803 Gas removing apparatus for removing non-condensate gas from a heat pipe and method for the same
09/2008
09/25/2008WO2008113180A1 Fluidic control system and method of manufacture
09/25/2008CA2684583A1 Fluidic control system and method of manufacture
08/2008
08/20/2008CN100411766C Apparatus for processing pipeline fitting
08/06/2008CN101234404A Method for producing metal pipe bend
07/2008
07/24/2008WO2008089291A2 Formation of a curl in a unitary closable container
07/24/2008US20080172858 Mechanical system for processing workpieces
07/17/2008US20080168818 Formation of a curl in a unitary closable container
07/10/2008US20080163489 Method of forming a heater core connector
07/09/2008CN101214609A Method for preparing motor vehicle nylon hose shaping mold
07/09/2008CN101214514A Corner iron shaping method, corner iron manufacturing method and corner iron shaping equipment
06/2008
06/25/2008CN101204723A Method of, and apparatus for, manufacturing metallic bellows
06/18/2008CN201073668Y Rolling circle curling machine
06/11/2008CN100393441C Method for forming large scale ellipsoidal volute joint
05/2008
05/15/2008US20080110010 Slip resistant file folders
04/2008
04/24/2008WO2008046200A1 Ground spike
04/24/2008CA2702109A1 Ground spike
03/2008
03/06/2008WO2008025131A1 Heat transfer surfaces with flanged apertures
03/05/2008CN201030401Y Forming device of special pipe end forming machine
02/2008
02/28/2008CA2557422A1 Heat transfer surfaces with flanged apertures
01/2008
01/29/2008US7322091 Vibration isolating bushing and its manufacturing method
11/2007
11/07/2007CN101066713A Process and apparatus for producing bottle cap with pull ring and tear-off
08/2007
08/22/2007CN101020210A Fixed plate forming process
08/22/2007CN101020209A Forming device of forming machine for special pipe end
08/15/2007CN2933635Y Three-bended and three- straightening cold rolling strip drawing straightening machine
08/15/2007CN2933634Y Cold rolling strip leveling withdrawal straightening machine
08/15/2007CN101015893A Rustless steel container and its production method
06/2007
06/26/2007US7234595 Heat shrinkable cover for decorating a flower pot
06/13/2007CN1978087A Apparatus for processing U-shape metal pipe and processing method
06/07/2007WO2007063596A1 Method and apparatus for assembling carriage assembly
02/2007
02/08/2007DE102005038521A1 Vorrichtung und Verfahren zur Herstellung von Blechgebinden Device and method for the production of sheet metal containers
01/2007
01/31/2007CN1903472A Method for forming large scale ellipsoidal volute joint
10/2006
10/05/2006US20060218792 Co-extruded generating bank swaged tubing
09/2006
09/27/2006CN2820375Y Cold bending type steel forming unit
08/2006
08/24/2006US20060185168 Aluminum pipe and process for producing same
06/2006
06/28/2006CN2790620Y Band steel bending straightening machine
06/28/2006CN1792491A Apparatus for processing pipeline fitting and processing method thereof
05/2006
05/17/2006CN2780377Y Multifunction levelling withdrowal straightening machine
04/2006
04/27/2006US20060086491 Heat exchanger and method of manufacturing the same
03/2006
03/08/2006CN1743092A Manufacturing process and end product of a wire-like rectangular section
02/2006
02/16/2006US20060032892 Uncoated cutting tool using brazed-in superhard blank
02/15/2006CN2757961Y Bibending bicorrecting type continuous stretching bending straightening machine
01/2006
01/25/2006CN2753485Y Internal-external angle-protecting ring forming machine for steel coil package
12/2005
12/06/2005US6971256 Method and apparatus for incremental forming
11/2005
11/24/2005DE102004019698A1 Gewendeltes Rohrelement Coiled tubing element
11/09/2005CN1693000A Roller group of bending and straightening machine for band steel and said straightening machine
10/2005
10/26/2005EP1588785A2 Helical tube element
10/06/2005US20050217098 Device and process for producing rolled sections
04/2005
04/27/2005CN2695136Y Multifunctional stretching bibending bitrengthening device
12/2004
12/23/2004DE10325036A1 Verfahren und Vorrichtung zum Herstellen von Biegeprofilen Method and device for producing of bending profiles
12/08/2004EP1484123A1 Method and apparatus for manufacturing a bent profile
10/2004
10/06/2004CN1533852A Method and device for sequentially forming processing
09/2004
09/30/2004US20040187545 Method and apparatus for incremental forming
09/29/2004EP1462189A1 Method and apparatus for incremental forming
08/2004
08/25/2004CN1163324C Method and apparatus for cold-bending C-shaped telescopic combined curtain bar
05/2004
05/26/2004CN2617491Y Cold rolled steel sheet shaper
03/2004
03/31/2004CN2608179Y Twisted bar machine
03/17/2004CN1142042C Forming process for T-shaped lift rail
03/03/2004CN1140361C Method for making composite metal pipe
02/2004
02/25/2004CN2604254Y Edge flanging & press joining device for forming metal hollow tube
09/2003
09/24/2003EP1212155B1 Device and method for forming a recess in a workpiece
09/24/2003CN1121914C Method for maochining rod body of anchor bolt and special equipment for machining spiral thread segment of rod body
08/2003
08/20/2003CN1118342C Method for producing metallic shell of electric connector and its finished product
06/2003
06/18/2003CN1424155A Special pipe cutting and notching tool
03/2003
03/25/2003US6536314 Device for continuous chipless separation of single identical rings from tubular workpieces
11/2002
11/20/2002CN2520961Y Automatic forming machine for bill board cabinet frame
10/2002
10/02/2002CN1371770A Technological method for working intermediate plate by cold upsetting extruding process
06/2002
06/12/2002EP1212155A1 Device and method for forming a recess in a workpiece
06/12/2002CN1353021A Technology for manufacturing metallic shell of electric connector and its finished product
02/2002
02/06/2002CN2475486Y Roller-pressing shaping equipment with shearing device
01/2002
01/16/2002CN1330988A Technology for making composite metal pipe
12/2001
12/12/2001CN2464469Y Iron forging cold rolling equipment
10/2001
10/10/2001CN2452640Y Machine for increasing stress, aligning and cutting steel bar
09/2001
09/26/2001CN1314218A Forming process for T-shaped lift rail
09/19/2001CN2448480Y Multi-function combined machine tool
08/2001
08/22/2001CN1309000A Method for machining rod body of anchor bolt and special equipment for machining spiral thread segment of rod body
03/2001
03/28/2001CN2424847Y Improved structure of polygon tank working device
03/15/2001DE19940995A1 Vorrichtung zum Einbringen einer Vertiefung in ein Werkstück Device for introducing a recess in a workpiece
03/08/2001WO2001015827A1 Device and method for forming a recess in a workpiece
03/08/2001CA2381844A1 Device and method for forming a recess in a workpiece
02/2001
02/07/2001CN2417949Y Column type stainless-steel cold-bent section mill
01/2001
01/25/2001DE19946111C1 Ring separation device for tubular workpiece uses coupled cutting rollers around outside of workpiece each provided with cylindrical body having helical cutting edge and auxiliary thread
11/2000
11/15/2000CN1273150A Method and apparatus for cold-bending C-shaped telescopic combined curtain bar
06/2000
06/28/2000CN2384701Y Die cast machine
04/2000
04/25/2000US6053997 Aluminum, copper, silicon alloy with differential scanning calorimetry generated by the melting of a eutectic crystal and a second angled endothermic
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