Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374)
06/1998
06/09/1998US5761807 Method of manufacture of a multiple finned tube
06/04/1998WO1998023399A1 Method and apparatus for controlling press brake ram
06/03/1998EP0845313A2 Shell lock seaming machine
06/03/1998EP0845311A1 Silencer shell forming apparatus
05/1998
05/28/1998WO1998022236A1 Upper die fitting apparatus of press brake
05/27/1998EP0844071A1 Corrugating device
05/27/1998EP0843605A1 Sheet metal bending device
05/26/1998US5756167 Rigid elongated member for use in vehicles and producing method and apparatus therefor
05/26/1998CA2155460C Method for manufacturing electric-resistance-welded steel pipe
05/20/1998EP0841998A1 Roll forming apparatus and method
05/19/1998US5752406 Flexible coining die
05/13/1998EP0841106A1 Press brake
05/07/1998WO1998018579A1 Bending angle correction method and press brake made using the same
05/06/1998CN1180594A Bending machine provided with blank holder having programmable length
05/05/1998US5746086 Driving device with force-limiting element for a bending unit
04/1998
04/29/1998EP0838278A1 A tool-changing mechanism for a metal forming press and an arrangement comprising a metal-forming press and a tool-changing mechanism
04/29/1998EP0719191B1 Folding press
04/28/1998US5743129 Heavy duty sheet bending brake
04/28/1998US5743128 Apparatus for bending metal sheet
04/23/1998WO1998009744A3 Strip shaping mechanism
04/22/1998EP0836896A2 Computer-controllable bending machine
04/21/1998US5740687 Forming apparatus for strip materials
04/16/1998DE19641924A1 External controller e.g for swivel bending machine
04/15/1998EP0719190B1 Folding press
04/15/1998CN1178727A Tube bending device for refrigerant guide tube of refrigerator
04/09/1998WO1998014288A1 Processing machine
04/09/1998WO1998014287A1 Variable panel forming apparatus and method
04/09/1998WO1998014286A1 Folding method and folding device in a folding machine
04/09/1998DE19641402A1 Bearbeitungsmaschine Processing machine
04/09/1998DE19640857A1 Method for producing and using profiles with punched-out connector elements for buildings
04/09/1998DE19640124A1 Biegemaschine Bending machine
04/09/1998DE19639590A1 Biegezentrum Bending center
04/09/1998DE19639589A1 Verfahren zum Bearbeiten von Blechteilen A method for processing of sheet metal parts
04/08/1998EP0834356A1 A bending machine provided with a blank holder having programmable length
04/07/1998US5735163 Press working method including step of strengthening local portion of blank
04/02/1998WO1998013155A1 Process for machining sheet metal parts
04/02/1998WO1998013154A1 Bending machine
04/02/1998WO1998013153A1 Bending centre
04/02/1998DE19636463A1 Blechbearbeitungsmaschine für plattenförmige Werkstücke mit einem in einzelne Segmente unterteilten Niederhalter Sheet metal working machine for plate-shaped workpieces with a subdivided into individual segments hold-down
04/01/1998CN1177526A Device for bending iron-plate of refrigerator casing and method therefor
03/1998
03/31/1998US5732582 Structural member forming apparatus and method
03/18/1998EP0829316A2 Roll forming method for forming flat tube and roll forming apparatus using the same
03/17/1998US5727415 Folding press with horizontal working stroke and rotatable manipulation arm
03/12/1998WO1998009744A2 Strip shaping mechanism
03/12/1998WO1998009743A1 Machining centre for processing flat workpieces, provided with a segment distributed hold-down
03/05/1998WO1998008631A1 Bending machine
03/05/1998WO1998008630A1 Bending method and bending apparatus
03/05/1998DE19635106A1 Biegemaschine Bending machine
03/03/1998US5722278 Roll forming apparatus
02/1998
02/25/1998EP0824977A1 A manipulator for a system for producing bent sheet-metal articles
02/25/1998CN1037497C Process for permanent bending of deformable bodies
02/24/1998US5720195 Tube forming machine
02/24/1998US5720138 Metallic wall framing, method and apparatus for producing same
02/19/1998WO1998006516A1 An automatic channel letter bending machine
02/19/1998CA2234622A1 An automatic channel letter bending machine
02/17/1998US5719374 Method of bending metal objects with an energy beam
02/17/1998US5718144 Dwell cam driver for stamping press
02/17/1998US5718048 Method of manufacturing a motor vehicle frame assembly
02/12/1998WO1998005442A1 Back gauge device
02/11/1998EP0822880A1 Device and process for shaping workpieces with laser diode radiation
02/11/1998CN1172707A Method for manufacturing railway open wagon side pillar
02/10/1998US5715872 Process and device for the shaping of leads of integrated circuits
02/10/1998US5715722 Portable sheet metal brake system
02/05/1998WO1998004368A1 Improved bending pressing machine, particularly in the processes of metal working
01/1998
01/29/1998DE19720666A1 Method for shaping sheet metal building profiles
01/27/1998US5711183 Device in a bending unit
01/27/1998US5711181 Die and die assembly for press brake
01/27/1998US5711180 Pressing cam die
01/15/1998WO1998001245A1 Device for adjusting the size of a machine tool blank holder
01/15/1998WO1998001244A1 Device for moving part of a machine and for exerting a force at the end of its stroke
01/15/1998WO1998001243A1 Press brake, mold layout display method in press brake, and interference check method and apparatus
01/15/1998DE19627563A1 Procedure for manufacture of rainwater drain curve
01/14/1998EP0659109B1 A sheet metal profile and a method of manufacturing the profile, whereby an initial local deformation is larger than the final
01/14/1998CN2272339Y Shape material roll
01/13/1998US5706693 Combined sheet bending brake and cutter
01/13/1998US5706692 Combined portable sheet bending brake, coil holder and cut-off mechanism
01/13/1998US5706691 Stand supporting method and equipment thereof and a position measuring method of a supporting platform and equipment thereof for roll former
01/08/1998DE19624600A1 Bending and forming of sheet metal
01/07/1998EP0815975A1 A device for unfolding a shaped metal article and a method for unfolding the same
01/06/1998US5704243 Forming method and forming stand for welded pipes
01/06/1998US5704238 Automatic die driving amount correction method
01/06/1998CA2120037C Apparatus for bending a strip material
12/1997
12/31/1997WO1997049508A1 Structural member forming apparatus and method
12/31/1997CN1168824A Method and apparatus for welding container bodies
12/30/1997US5702733 Press working machine
12/24/1997CN1168647A Strip forming method and apparatus
12/17/1997CN2270571Y Top roller universal veneer reeling machine
12/17/1997CN1167695A Automotive sunshade panel and method of manufacturing same
12/11/1997WO1997046339A1 Shaping machine for sheet-like workpieces, especially for bending the edges of sheet-steel components
12/11/1997WO1997046336A1 Sheet metal bending machine with offset press rollers
12/11/1997WO1997046334A1 Strip forming method and apparatus
12/11/1997DE19723801A1 Heat exchanger collector with offtake tubes
12/11/1997CA2257192A1 Sheet metal bending machine with offset press rollers
12/10/1997EP0811436A1 Method of manufacturing pipe
12/10/1997CN2269910Y Multipurpose plate bending machine
12/09/1997US5694801 Plate material bending apparatus
12/04/1997DE19621658A1 Bearbeitungsmaschine für plattenförmige Werkstücke, insbesondere zur Erzeugung von gebogenen Rändern an Blechteilen Machine for plate-shaped workpieces, especially for the production of curved edges of sheet metal parts
12/03/1997EP0809551A1 Arresting device
12/02/1997US5692408 For folding a sheet of material
11/1997
11/26/1997EP0250594B2 Forming roll for pipe mills and forming method and apparatus using same
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