Patents for B21D 19 - Flanging or other edge treatment, e.g. of tubes (3,484)
12/1995
12/26/1995US5477720 Device for roller-flanging cylindrical bodies
12/20/1995EP0687513A1 Bending machine
12/13/1995EP0686441A1 Structure for and method of joining metal plate materials
12/13/1995EP0594810B1 Bobbin body and process for producing the same
12/12/1995US5474437 Metallic die device for press machine
12/06/1995EP0685610A1 Girder made of metal, in particular of steel, manufactured from a web and at least one flange, by welding them together using radiant energy and a method of manufacturing the same
11/1995
11/08/1995CN2211862Y Press button type mouth gripper
11/07/1995CA2100803C Apparatus for flanging containers
10/1995
10/31/1995US5462424 Metallic die device for press machine
10/25/1995CN1110636A A die set
10/10/1995CA1337253C Bending apparatus
09/1995
09/21/1995DE4408883A1 Method and appts. for producing a flange joint
09/20/1995EP0671982A1 Zone heating apparatus
09/13/1995EP0670942A1 Outflow element for rain-water drainage and method for the fabrication thereof.
09/13/1995CN2207243Y Portable thermal-molten pipline edge folding apparatus
09/06/1995EP0669863A1 Process and apparatus for welding and other heat treatments
08/1995
08/17/1995WO1995021711A1 Improved hemming machine
08/17/1995WO1995021710A1 Improved hemming machine
08/08/1995CA1336555C Method and conversion apparatus for the conversion into a collar of an edge portion around a hole in a blank using a converter tool and converter mandrel suitable for the conversion apparatus
07/1995
07/27/1995WO1995019856A1 Driving device for a bending unit
07/25/1995US5435162 Zone heating apparatus
07/20/1995WO1995019233A1 Workpiece-deforming tool and die for use in a punch press
07/20/1995DE4400875A1 Method for reshaping tube end into profile
07/11/1995US5431619 Process and apparatus for forming an outwardly curled lip on cylindrical container body
06/1995
06/28/1995CN1104134A One-time forming machine for bite edges at two ends of thin plate
06/27/1995US5426967 Apparatus and method for forming bullnose corner bead
06/20/1995US5425259 Forming machine for bending metal strips
05/1995
05/31/1995EP0655287A2 Bordering tool
05/31/1995CN1028618C Method and apparatus for forming, reforming and curling shells in single press
05/31/1995CN1028617C Die Assembly for and method of forming metal end unit
05/23/1995US5417097 Process and apparatus for press forming
04/1995
04/25/1995US5410123 Process and apparatus for welding annular bellows
04/20/1995DE4335174A1 Process for bending metal sheets, and bending-off press for carrying out the process
04/12/1995EP0647487A1 Machine for forming a curl
04/05/1995CN2193779Y Microcomputer-controlled hydraulic automatic edge-curling machine
03/1995
03/15/1995CN1100012A Apparatus for rolling winding edge
03/07/1995US5394729 Sheet metal bending tool
02/1995
02/21/1995US5390521 Ridge roller device
02/21/1995CA1334496C Bending apparatus
02/16/1995WO1995004615A1 Zone heating apparatus
02/01/1995CN1098033A Process and apparatus for forming an outwardly curled lip on cylindrical container body
01/1995
01/26/1995DE4345201A1 Bending apparatus for flat steel bars
01/18/1995CN2187501Y Shaping device for pipe outer flange
01/04/1995EP0631924A1 Frame forming member
12/1994
12/14/1994EP0628362A2 Press tool
12/14/1994EP0627967A1 Method and apparatus for flattening portions of a corrugated plate
12/07/1994EP0627273A2 Press tool
11/1994
11/30/1994EP0626254A2 Process and apparatus for forming an outwardly curled lip on cylindrical container body
11/30/1994EP0626222A1 Procedure and apparatus for forming a rectangular collar at the end of a pipe
11/29/1994US5367770 Method for embossing indented door light opening edge
11/17/1994EP0624411A1 Method of bending plates and press brake for carrying out the method
11/17/1994DE4315706A1 Method for bending metal sheets and a bending press for carrying out the method
11/09/1994EP0623405A1 Device for flanging cylindrical bodies by rolling
10/1994
10/25/1994US5357665 Apparatus for executing hemming process
10/18/1994US5355722 Conduit flaring apparatus
10/06/1994DE4311228A1 Method and edge-bending press for forming the edge strips on a metal sheet to be formed into a slotted tube
10/05/1994CN1026086C Connector of convey belt and production of same
09/1994
09/13/1994US5345801 Procedure and apparatus for forming a rectangular collar at the end of a pipe
08/1994
08/30/1994US5341668 Method of forming a vessel pouring spout
08/02/1994US5333482 Method and apparatus for flattening portions of a corrugated plate
07/1994
07/28/1994DE4312746C1 Flanging device for insulating tape of electric motor stator windings
07/26/1994US5331833 Method of operating an upsetting press
07/26/1994CA2017584C Bent pipe
07/14/1994DE4300316A1 Flat iron@ folding mechanism with several gripper jaws
07/06/1994EP0604788A1 Method of forming a vessel pouring spout
07/06/1994CN1025298C Method and device for forming sheet-metal blank,in particular in order to make cathode ray tube mask
07/01/1994CA2109653A1 Method of forming a vessel pouring spout
06/1994
06/14/1994US5320468 Tin can manufacturing process
05/1994
05/24/1994US5314006 Sheet metal heating package for regenerative heat exchangers as well as a method and apparatus for manufacture of profiled metal sheets for such sheet metal heating packages
05/11/1994WO1994009927A1 Method and apparatus for flattening portions of a corrugated plate
05/11/1994CA2123510A1 Method and apparatus for flattening portions of a corrugated plate
05/10/1994US5309622 Pressing tool for the production of multilayer formed plates
05/04/1994EP0594810A1 Bobbin body and process for producing the same.
05/03/1994CA2015754C Die assembly for and method of forming metal end unit
04/1994
04/28/1994WO1994009225A1 Outflow element for rain-water drainage and method for the fabrication thereof
04/28/1994WO1994008750A1 Process and apparatus for welding and other heat treatments
04/28/1994CA2147607A1 Process and apparatus for welding and other heat treatments
04/12/1994US5301414 Process for shaping a reinforcement on the extremities of the internal casing of an elastic joint, after molding, and its applications
03/1994
03/22/1994US5295390 Method of burring
03/16/1994CN1083749A Flanged angle material and U-shape material
03/10/1994DE4316165C1 Weld prepn of shell wall abutment faces - to ensure reliable weld gap tolerance for plasma laser butt welding
03/09/1994EP0585613A1 Sheet rolling machine
02/1994
02/22/1994US5287718 Curl forming method for a can end
02/16/1994CN2155967Y Edge folding die for stainless steel pipe end
02/02/1994EP0581650A1 Improvements to apparatus for flanging containers
01/1994
01/27/1994DE4224423A1 Sheet metal body panel for motor vehicle - has lock seam, which is curved, so that inner part surfaces almost touch
01/26/1994EP0579894A1 Metal sheet shaped to achieve polygonal articles with weldless edges at the vertices and manufacturing method for said article
01/26/1994EP0579893A1 Apparatus for forming weldless edges on sheet metal articles
01/19/1994CN1080883A A method of making a brazeable metal pipe having tube-insertion apertures formed with guide lugs
01/05/1994EP0577239A1 A method of making a brazeable metal pipe having tube-insertion apertures formed with guide lugs
01/05/1994EP0576796A1 Metallic die device for press machine
01/05/1994DE4221332A1 Plant for simultaneous deburring of strip edges - has wide strip passing through slitting arrangement and leaves as separate strips of equal width, with twisting to allow edge grinding
01/05/1994DE4221331A1 Strip edge flash removal - has profiled tilting and separation rollers pointing up and down for simultaneous flash removal from strips only at the cut edges
12/1993
12/21/1993US5271256 Tooling module for stamping and forming machine
12/14/1993US5269167 Universal aerial cam unit
12/09/1993DE4301392A1 Bordering and flanging tool for folding and/or widening car mudguards - has bordering roller for pressing against mudguard while housing edge coupled to fastening flange
12/02/1993DE4217758A1 Bending end of strip into hooked shape - involves set of rollers and triangular section core to exert bending action
11/1993
11/24/1993EP0570641A1 Method of forming a tube to header joint
11/20/1993CA2083408A1 Clinched tube to header joint
11/16/1993CA2096303A1 Spin flow necking apparatus and method of handling cans therein
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