Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374)
11/1997
11/26/1997CN2268591Y Pre-curled mould for pipe of bend
11/19/1997CN1165490A Machine for stamping, bending and assembling sheet metal parts
11/11/1997US5685191 Upper tool for press brake
11/11/1997US5685188 Universal mill stand for forming tubes
11/05/1997EP0804977A2 Automotive sunshade panel and method of manufacturing same
11/04/1997US5682783 Ceramic tubemill roll assembly
10/1997
10/29/1997EP0803312A2 Method and device for roller seam welding
10/29/1997EP0803311A2 Method and device for welding can bodies
10/29/1997EP0803300A1 Apparatus for forming straight sheet metal airducts
10/29/1997EP0714329B1 Mechanical hand for moving plates, in particular sheet metal panels, with respect to a machine tool such as a bending press
10/23/1997WO1997038806A1 Device for shaping workpieces
10/23/1997DE19615251A1 Procedure for processing of workpieces in bending press
10/22/1997EP0802001A1 Device for bending the rim of a sheet
10/16/1997DE19614517A1 Vorrichtung zum Verformen von Werkstücken Apparatus for shaping of workpieces
10/16/1997DE19613962A1 Pivoting bending machine for bending or folding e.g. copper plates
10/15/1997CN1162291A Ladder frame assembly for a motor vehicle
10/14/1997US5676004 Method of detecting bender operating time
10/08/1997EP0799656A2 Method for producing pipe having polygon-shaped closed cross-section and device therefor
10/07/1997US5673579 Welded steel pipe manufacturing apparatus and method
10/02/1997DE19612239A1 Machine for fabrication of edge profiles on sheet metal
09/1997
09/23/1997US5669992 Bumper beam making process
09/23/1997US5669260 Method of manufacturing a c-shaped rail with profiled surfaces
09/12/1997WO1997033053A1 Metal panel structures
09/12/1997WO1997032677A1 Apparatus for bending a metal sheet
09/12/1997WO1997032676A1 Method of manufacturing thin-walled pipe or product having similar cross section
09/10/1997EP0793561A1 Device for gripping and handling pieces of sheet material and manipulator of pieces of sheet material comprising this device
09/10/1997EP0793551A1 Machine for stamping, bending and assembling sheet metal parts
09/06/1997CA2199187A1 Combined portable sheet bending brake, coil holder and cut-off mechanism
09/04/1997WO1997031728A1 Method for making a skip body with a concave cross section
09/04/1997CA2247525A1 Method for making a skip body with a concave cross section
09/02/1997US5662264 Method for welding aluminum plates
09/02/1997US5661996 Back gage for a bending brake
08/1997
08/28/1997WO1997030804A1 Method of operating robot for press-brake, and control device
08/28/1997WO1997030803A1 Bending order selecting method in bending machine and apparatus therefor
08/27/1997CN1157768A Fabrication method of welded steel pipe using dual-phase stainles steel
08/26/1997US5661671 Bending angle detecting position setting device
08/21/1997WO1997030327A1 Angle detection method for bending machine, angle detection apparatus and angle sensor
08/21/1997CA2251938A1 Angle detection method for bending machine, angle detection apparatus and angle sensor
08/19/1997US5657922 Machine and process for forming tapered or cylindrical utility poles from flat sheet metal
08/19/1997US5657662 Bending brake platform
08/13/1997EP0788852A1 Electric-resistance welded tube fin pass molding apparatus and double purpose roll apparatus utilizing the same
08/13/1997EP0788411A1 A bending press for making channel-shaped bends in the four edges of a sheet-metal panel
08/07/1997WO1997027957A1 Sheet-metal bending machine
08/07/1997WO1997027956A1 Forming roll for pipe mill and clamp
08/05/1997US5653899 Hot metal working by passing through multi-stage rolls
07/1997
07/30/1997EP0785833A1 Strip forming method and apparatus
07/30/1997EP0785832A1 Workpiece stop device
07/30/1997CN1155455A Uppeer tool holder apparatus for press brake
07/29/1997US5652805 Bending angle detector and straight line extracting device for use therewith and bending angle detecting position setting device
07/23/1997EP0785336A1 Insulating spacer for creating a thermally insulating bridge
07/17/1997WO1997025568A1 Optical safety device for mounting on a moving member
07/17/1997DE3546876C2 Abkantpresse Press brake
07/16/1997EP0783425A1 Ladder frame assembly for a motor vehicle
07/15/1997US5647241 Rotary upper roll selector
07/15/1997CA2020259C Method and apparatus for bending manufacturing of long workpiece
07/09/1997CN1153687A Plate roller for rolling slender cylinder
07/08/1997US5644942 Roll stand raft assembly
07/02/1997CN1153488A Method for bending with press brake and press brake for use therein
07/01/1997US5642642 Upper tool and upper tool holding device for press brake
07/01/1997US5642639 For use in a folding machine to produce sheet panels
06/1997
06/24/1997US5640873 For bending a piece of sheet material through an obtuse angle
06/24/1997CA2134727C Sloped bottom tank
06/19/1997CA2188632A1 Fabrication method of welded steel pipe using dual-phase stainless steel
06/18/1997EP0779116A1 A quick clamping device for at least one tool of a machine tool
06/18/1997EP0751728A4 Squeakless furniture spring anchor clip and method of making same
06/05/1997WO1997019769A1 Bending brake apparatus
06/04/1997CN1035077C Structural member with welded hollow end sections and process for forming same
05/1997
05/29/1997WO1997018907A1 Adjustable sheet metal folding apparatus
05/28/1997EP0775028A1 Method and machine for bending workpieces
05/27/1997US5632508 Ladder frame assembly for a motor vehicle
05/27/1997US5632174 Metal bending machine
05/20/1997US5630336 Bending brake
05/20/1997US5630333 Apparatus for bending blade material
05/20/1997US5630306 Insulating spacer for creating a thermally insulating bridge
05/15/1997WO1997017148A1 Method and apparatus for making heat exchanger fins
05/14/1997EP0749363A4 Markless press brake material protector
05/13/1997US5628225 Leaf spring cambering apparatus
05/07/1997EP0771238A1 Bending press for sheet metal
05/06/1997US5626169 Device for bending leads of a lead frame
04/1997
04/30/1997CN1148822A Method and device for rounding cans
04/23/1997EP0769336A1 Method for bending with press brake and press brake for use therein
04/23/1997EP0700321A4 Side panel assembly and method and apparatus for forming the same
04/15/1997US5619885 Upper tool holder apparatus for press brake and method of holding the upper tool
04/09/1997EP0767015A1 Upper tool holder apparatus for press brake
04/07/1997CA2160067A1 Adjustable collars and rolls for use in rollforming
04/03/1997WO1997011801A1 Machine for stamping, bending and assembling sheet metal parts
04/03/1997DE19535949A1 Maschine zum Stanzen, Biegen und Montieren von Blechteilen Machine for punching, bending and assembly of sheet metal parts
04/03/1997CA2205952A1 Machine for stamping, bending and assembling sheet metal parts
04/02/1997EP0637273A4 Machine and method for forming arched roof vertical wall self supporting metal buildings and building constructions.
04/02/1997EP0550578B1 Interengageable structural members
04/01/1997US5615571 Device for cambering conductive fingers on an integrated circuit
04/01/1997US5615568 Apparatus and method of detecting bender operating time
03/1997
03/26/1997EP0696960B1 Press-driven tool module, in particular press-driven cross-punching or bending unit
03/20/1997DE3745067C2 Multi-step bending machine e.g. press brake
03/20/1997DE3745066C2 Multi-step bending machine e.g. press brake
03/20/1997DE3745027C2 Multi-step bending machine e.g. press brake
03/20/1997DE3745026C2 Multi-step bending machine e.g. press brake
03/06/1997DE19533618A1 Three-roll sheet bending machine for slit tube prodn.
03/05/1997EP0759822A1 Method and device for rounding cans
03/05/1997CN1144495A Improvements in/or relating to rollformers
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