Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 19 - Flanging or other edge treatment, e.g. of tubes
Patents for B21D 19 - Flanging or other edge treatment, e.g. of tubes (3,484)
05/2000
05/03/2000EP0997206A1 Method of making a hub or a shaft
05/03/2000EP0996760A1 A method for improving the hemmability of age-hardenable aluminum sheet
05/02/2000US6055836 Flange reforming apparatus
04/2000
04/25/2000US6053027 Press apparatus and press system
04/19/2000EP0993884A2 Apparatus and method for flanging sheet metal edges
04/05/2000CN2372076Y Thin-wall cylindrical end flanging device
03/2000
03/23/2000WO2000015368A1 Method for manufacturing a one-piece torsional vibration damper retainer plate
03/22/2000EP0669863B1 Process and apparatus for welding and other heat treatments
02/2000
02/23/2000EP0686441B1 Structure for and method of joining metal plate materials
02/09/2000EP0978334A2 Hemming apparatus
02/09/2000EP0978333A2 Punch holder apparatus
02/08/2000US6021571 Apparatus for forming collars in workpieces
01/2000
01/25/2000CA2165646C Device for coupling and flaring a metal pipe
01/13/2000DE19931932A1 Chamfering routine with work feed handles sheet between top and spring-supported bottom tool as plungers in two-sided chamfer press.
01/05/2000EP0885074B1 Method and device for producing stamped parts
12/1999
12/29/1999EP0809552B1 Headforming machine for expanding tube ends
12/07/1999US5996386 Equipment and method for edging and tapering cylindrical body cans
12/02/1999WO1999061764A1 Emission system part and method of manufacturing the part
11/1999
11/30/1999US5992198 Method and device for producing a tube in a tube plate
11/24/1999CN2350144Y External angle profile device for trimming end of steel pipe
11/16/1999US5983761 Method of punching template for forming a base plate of a tape cassette
11/16/1999US5983496 Circular and oval flanged rings for connecting ducting and method of making
11/10/1999EP0955111A1 Integral structure of sheet material and cylindrical member and production method thereof
10/1999
10/13/1999EP0868232B1 Method for forming a flange on a tube
10/13/1999CN1045562C Process and apparatus for forming an outwardly curled lip on cylindrical container body
10/05/1999US5960687 High-precision cutting and boring mill
09/1999
09/29/1999EP0945192A1 Method for stiffening a thin metal plate and board with stiffening edges produduced thereby
09/28/1999US5956987 Machine for flaring pipe ends
09/22/1999EP0943381A1 Apparatus and method for removing a burr on a cutting edge of a continuous casted part
09/14/1999CA2168061C Burring processing method, jig for burring processing and burring processing apparatus
09/07/1999US5948185 Relates to improvements in forming hems and hemmed bonds in such an aluminum sheet member.
08/1999
08/31/1999US5943899 Method of processing corners of metal panel
08/31/1999US5943773 Branch pipe forming tool and method of forming branch pipe on metal tube with the tool
08/26/1999DE19807845A1 Process for pressing metal parts
08/17/1999US5937695 Knockout tool
08/17/1999US5937691 Method of forming an inner flange on a sheet metal member having a cylindrical portion
07/1999
07/29/1999WO1999037419A1 Flanging device with pressing and clamping elements
07/29/1999WO1999037418A1 Flanging device with flanging head
07/29/1999CA2318544A1 Flanging device with pressing and clamping elements
07/21/1999EP0930111A1 Flange reforming apparatus
07/20/1999CA2181812C Pipe lap joint with improved collapsible sealing zone
07/14/1999EP0739254B1 Workpiece-deforming tool and die for use in a punch press
06/1999
06/22/1999US5913931 Extended length rotary bending and forming devices and methods for manufacture thereof
06/16/1999EP0922510A1 Method and device for forming a tube in a tube plate
05/1999
05/19/1999EP0917417A2 Method for producing a mounting plate
05/14/1999WO1999022887A1 Extended length rotary bending and forming devices and methods for manufacture thereof
04/1999
04/22/1999DE19744372A1 Former for producing items with small flanges in a fluid cell or flexible pad press
04/07/1999CN2312776Y Channel-curling machine
04/01/1999WO1999015390A1 Method for manufacturing a tubular sheet metal beam having corbelled-out end sections and a sheet metal beam manufactured in accordance with the method
03/1999
03/31/1999CN1042703C Method of making brazeable metal pipe having tube-insertion apertures formed with guide lugs
03/24/1999EP0903555A2 Fin for heat exchanger and method for making holes in such a fin
03/02/1999US5876525 Bobbin body and process for producing the same
02/1999
02/18/1999WO1999007492A1 A method of producing a hardened sheet steel product
02/16/1999US5872348 Method for forming a projection for projection welding
02/11/1999WO1999006267A1 Vehicle body assembly
01/1999
01/26/1999US5863081 Pipe connection structure
01/06/1999CN1204273A Method of forming boss integrally with sheet metal
01/05/1999CA2127196C Frame forming member
12/1998
12/29/1998US5853275 Apparatus for flanging can bodies
12/29/1998US5852873 Method of manufacture of a rotationally symmetrical part
12/23/1998EP0885074A1 Method and device for producing stamped parts
12/09/1998EP0882530A2 Method of cold confirmation of the double-walled end of a tube by turning over the first end-wall
11/1998
11/18/1998CN2297263Y Pressure connecting combined die
11/17/1998US5836198 Combination square and bending tool
11/12/1998WO1998050595A1 A method for improving the hemmability of age-hardenable aluminum sheet
11/11/1998CN2296781Y Pipe electric bevelling machine
11/05/1998DE19718014A1 Sheet metal container
11/03/1998US5829219 Frame forming member
10/1998
10/29/1998DE19717024A1 Slotted-contact production system for switch chamber under vacuum
10/27/1998US5826454 Device for flanging the end of a metal tube
10/07/1998EP0868232A1 Method for forming a flange on a tube
10/07/1998CN1195305A Method of forming relatively hard materials
09/1998
09/29/1998US5813267 Methods and apparatus for reducing flange width variations in die necked container bodies
09/22/1998US5809649 Method for the manufacture of a machine part having external toothing
09/15/1998US5806358 Method and apparatus for the manufacture of a workpiece having a boss
09/01/1998US5799524 Pressure forming and piercing a hollow body
08/1998
08/25/1998US5798185 Joined structure and joining method of metal plates
08/25/1998US5797291 Die set for manufacturing heat exchanging fin of heat exchanger
08/18/1998US5794501 Method of punching template for forming a base plate of a tape cassette
08/12/1998EP0857525A1 Thin sheet forming dies
07/1998
07/30/1998DE19801341A1 Method of forming internal flange on sheet metal part
07/29/1998EP0855234A2 Flanging apparatus
07/28/1998US5784916 Thin sheet forming die assembly including a lower die having plural parallel rotating cylindrical members
07/28/1998US5784915 For joining overlapping edge portions of two sheet metal parts
07/28/1998CA2225314A1 Flanging apparatus
07/21/1998US5782128 Hand tool for flaring a tube
07/16/1998DE19700871A1 Producing hub of road vehicle steering wheel
07/08/1998CN2285701Y Metal pipe head mfg. machine
07/01/1998EP0851165A2 Method and device for producing a pipe elbow
06/1998
06/24/1998CN1185575A Steel-board bending device for refrigerator door
06/09/1998US5761947 Edge treatment tool
06/04/1998WO1998023438A1 Press apparatus and press system
05/1998
05/28/1998WO1998022239A1 Integral structure of sheet material and cylindrical member and production method thereof
05/19/1998US5752402 Vibratory or rocking edge treatment tool
05/07/1998WO1998018582A1 Method of producing a hub without cutting
05/06/1998EP0839076A1 Method of forming relatively hard materials
05/05/1998US5746086 Driving device with force-limiting element for a bending unit
05/05/1998US5746083 Hemming machine
04/1998
04/22/1998EP0836898A2 Apparatus for flanging the end of a tube
04/22/1998EP0836897A2 Method of and device for making bent- or torsion loaded structural steel beams with U or V profile
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