Patents for B21D 19 - Flanging or other edge treatment, e.g. of tubes (3,484)
06/2004
06/16/2004CN1153636C Continuous edge-curling mechanism without rivet for sheet
06/15/2004US6751572 Auto-correcting part measurement system
06/10/2004US20040107560 Spring assembly and method for manufacturing the same
06/09/2004EP1276575B1 Method and apparatus for forming two flanges on a metal sheet
06/09/2004CN2619737Y Joint angle dowel machine
06/08/2004US6745606 Device and method for bending cylinder edge
06/03/2004US20040104092 Synchronizer sleeve used in power transmission and press-forming apparatus for the same
05/2004
05/26/2004EP1422385A1 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
05/25/2004US6739166 Method of forming tubular member with flange
05/19/2004CN1498142A Method for producing rolled edge
05/19/2004CN1497199A Spring assembly and manufacturing method thereof
05/13/2004US20040089043 Method and device for forming a flange or a rim on an end of a steel pipe
05/06/2004US20040083785 Tool for flanging coated brake pipes
05/06/2004EP1416186A2 Spring assembly and method for manufacturing the same
04/2004
04/29/2004US20040078977 Flange sleeve, method for the production thereof and bending tool for producing flanges on a sleeve
04/28/2004EP1289706B1 Hollow product, fluid processing system and joining method of hollow members
04/22/2004DE10328957A1 Device for simultaneous production of metal or plastic bands including machining of edges
04/22/2004DE10197111T5 Elektrische Falzpresse Electrical crimper
04/21/2004EP1409172A1 Tool and method for opening a hem flange
04/13/2004US6719375 Wheel rim and wheel rim manufacturing method
04/07/2004CN1486802A I-Wheel curling formation process
04/06/2004US6715329 Method and device for forming a corner limited on three sides, from a plate-shaped material with an even surface
04/01/2004WO2004026503A1 Composite fabrication facility of steel tube and fabrication method of steel tube
04/01/2004WO2004026497A1 Process and production line for manufacturing ultrathin hot rolled strips based n the thin slab technique
04/01/2004DE10342396A1 Braddle tool for drilling holes in metal pipes esp. brake pipes in cars has a main body with a (cylindrical head and (inner thread and semi-cylindrical recess and insertion groove for pipe to be drilled also clamping screws
03/2004
03/23/2004US6709061 Seat frame structure and method for forming
03/16/2004US6705148 End-forming of corrugated metal foil wrap tubing
03/16/2004CA2087109C Method of making a brazeable metal pipe having tube-insertion apertures formed with guide lugs
03/11/2004US20040045151 Method of manufacturing piping having joining portion
03/11/2004DE20319565U1 Rohrendenbearbeitungsvorrichtung Beveling device
03/03/2004CN1478620A Method for manufacturing pipeline system with connecting part
02/2004
02/26/2004US20040035173 Device for processing strip
02/26/2004US20040035172 Device and method for hemming processing
02/25/2004CN2604253Y Edge-curling machine
02/18/2004EP1389694A1 Synchronizer sleeve used in power transmission and press-forming apparatus for the same
02/18/2004CN1476358A Edge bending method and apparatus
02/12/2004DE10233360A1 Machine to smooth the stamped edges of stamped metal sheets, before painting, has a pair of rollers in succession with structured peripheral ring grooves to press in the projecting flash without metal removal
02/05/2004DE10333122A1 Verfahren zur Herstellung einer Rohrleitung mit einem Verbindungsbereich A process for producing a pipe with a connecting portion
01/2004
01/22/2004DE10257886A1 Nockenpresse Cam Press
01/22/2004DE10228169A1 Vorrichtung zum Formen von Öffnungen in Blechen Apparatus for forming holes in metal sheets
01/15/2004US20040007043 Negative angle forming type rotary cam moving apparatus
01/15/2004US20040007038 Method for electromagnetically forming metallic member and metallic member formed by electromagnetic forming
01/14/2004EP1380364A1 Method for electromagnetically forming metallic member and metallic member formed by electromagnetic forming
01/14/2004EP1380360A1 Negative angle forming type rotary cam moving apparatus
01/14/2004CN1467044A Negative angle forming type rotary cam moving apparatus
01/12/2004CA2403565A1 Negative angle forming type rotary cam moving apparatus
01/07/2004CN1466499A Method and device for forming a flange or a rim on an end of a steel pipe
01/06/2004US6672123 System for cold-forming a flange
01/02/2004EP1372880A1 Method for producing a rolled edge
01/01/2004US20040000184 Cam-type press system
12/2003
12/18/2003US20030230119 Unitary wrought spinner
12/11/2003US20030226388 Rotary drive apparatus for rotary body
12/10/2003EP1369187A2 Rotary drive apparatus for rotary body
12/10/2003CN1461247A Folded-seam connection, method and device for producing it
12/07/2003CA2392582A1 Rotary drive apparatus for rotary body
12/02/2003CA2070857C Post molding wedge forming process for pivot joint internal bushing ends, and applications
11/2003
11/20/2003DE20023261U1 Forming two opposite flanges on a metal sheet, involves moving metal sheet from front to back end, and vice versa, of a rollformer to form the corresponding flanges
11/12/2003EP1360022A1 Flange sleeve, method for the production thereof and bending tool for producing flanges on a sleeve
11/11/2003US6644083 Spin forming a tubular workpiece to form a radial flange on a tubular flange and a bead or thick rim on the radial flange
11/04/2003US6640601 Electric hemming press
11/04/2003US6640599 Tool for automatic roll folding
10/2003
10/30/2003US20030201663 Seat frame structure and method for forming
10/29/2003CN1451498A United corner jointing machine
10/21/2003US6634335 Component, especially a high-pressure component for fuel injection systems, and method for producing a component of this type
10/15/2003EP1202825B1 Method and device for forming a corner limited on three sides, from a plate-shaped material with an even surface
09/2003
09/30/2003US6626020 Method of producing vibration-isolating bushing
09/24/2003EP0996760B1 A method for improving the hemmability of age-hardenable aluminum sheet
09/24/2003CN1443627A Cam equipment
09/18/2003US20030173778 Hollow product, fluid processing system and joining method of hollow members
09/17/2003EP1344586A1 Cam apparatus
09/11/2003US20030167874 Cam apparatus
09/11/2003US20030167814 Device and method for bending cylinder edge
09/10/2003EP1342517A2 Attaching a bottom to a can body
09/10/2003EP1342516A2 Roll forming a non circular cross sectional shape
09/10/2003EP1341622A1 Folded-seam connection, method of producing it and device
09/10/2003EP1165268B1 Tool for automatic roll folding
09/03/2003CN1439537A Wheel rim and producing method thereof
08/2003
08/28/2003US20030159491 Sheet metal bending machine for forming cleats
08/27/2003CN1119210C Device for forming external decorative material for building
08/21/2003WO2003069185A1 Work piece, metal push belt and method and processing tool for producing the same
08/21/2003US20030155805 Wheel rim and wheel rim manufacturing method
08/19/2003US6607802 Method for joining two parts and a unit of joined parts joined by the same
08/14/2003WO2003066251A1 Seat frame structure and method for forming
08/07/2003WO2003064072A1 Metal sheet for building purposes, and method and apparatus for making such sheets
08/06/2003CA2370811A1 Seat frame structure and method for forming
07/2003
07/30/2003EP1331048A1 Metal sheet for building purposes, and method and apparatus for making such sheets
07/29/2003US6598285 Bordering and/or crease-closing machine and method for operating the same
07/23/2003CN1431944A Hollow product, fluid processing system and joining method of hollow members
07/17/2003WO2002057033A8 Electric hemming press
07/16/2003EP1244529B1 A method and an apparatus for can making
07/01/2003US6584661 Hemming machine
06/2003
06/25/2003EP1320429A1 Method and device for forming a flange or a rim on an end of a steel pipe
06/25/2003EP1165266A4 Manufacturing process for container including a heat exchange unit as an integral part thereof
06/04/2003CN1422192A Method and apparatus for forming two flanges on a metal sheet
05/2003
05/28/2003CN1419974A Process and device for making air metal intlet of fan
05/13/2003US6560838 Sheet metal repair method, sheet metal repair tool, and sheet-like member fixing device
05/08/2003WO2003037541A1 Device and method for hemming processing
05/08/2003US20030085231 Reinforced metal container and method for making same
04/2003
04/24/2003US20030074943 Method and an apparatus for can making
04/16/2003EP1302253A2 Spin-forming method, spin-forming apparatus, and catalytic converter
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