Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374)
07/1987
07/08/1987CN86107514A Forming roller in tube-rolling machine, forming process and apparatus therefor
06/1987
06/30/1987US4675992 Method and apparatus for forming a smooth tube from a flat tape
06/24/1987EP0226167A2 Method of bending elongated material and bending machine for carrying out this method
06/23/1987US4675489 Through guide for rounded blanks on a seam welding machine
06/18/1987WO1987003518A1 Press forming sheet metal
06/17/1987CN85108551A Pipe-plate integral type heat-collecting strip of solar energy heater for water heating
06/16/1987US4672835 Apparatus for bending sheet material
06/16/1987US4672831 Bending press
06/09/1987US4671094 Portable sheet bending brake
06/03/1987EP0224437A1 Optical apparatus with a radiant beam for the automatic control of the bending operation during the bending with a press brake
05/1987
05/12/1987US4663957 Roll stand for a cold forming apparatus
04/1987
04/30/1987DE3536674A1 Kit for a do-it-yourself sheet metal bending device
04/28/1987US4660754 Process of forming welded tubing
04/28/1987US4660402 Apparatus for adjusting tool length of bending machine
04/28/1987US4660401 Apparatus for producing bearings in the form of press worked bush
04/28/1987US4660399 Mobile roll-forming machine
04/21/1987US4658625 Bending machine and a die changing system for such bending machine
04/21/1987US4658624 Bending Machines
04/14/1987US4656862 Press machine
04/14/1987US4656861 Bending machine and a die changing system for such bending machine
04/14/1987US4656858 Roll forming apparatus
04/09/1987WO1987001977A1 Roll forming machines
04/09/1987DE3541124C1 Apparatus for the production of internally tapered workpieces from a flat sheet-metal blank
04/07/1987CA1220125A1 Portable sheet bending brake
03/1987
03/31/1987US4653307 Bending tool
03/25/1987EP0215263A2 Press brake
03/24/1987US4651553 Portable sheet bending brake
03/19/1987DE3629270A1 Apparatus for the wear-free forming of dimensionally accurate sheet-metal components with an at least approximately L-shaped or U-shaped cross-section from sheet-metal blanks or sheet-metal parts
03/19/1987DE3533044A1 Process and apparatus for the production of hollow rods and rolled sections
03/11/1987EP0213667A2 Method and apparatus for bending sheet-like work pieces
03/04/1987CN86104873A Roll forming of metal articles
03/03/1987US4646420 Combined bending and cutting machine for metal plate
02/1987
02/18/1987CN85106336A Die for tube drawing
02/17/1987CA1218003A1 Backgauge device
02/12/1987WO1987000773A1 Roll forming of metal articles
02/10/1987US4641516 Bending tool
02/04/1987EP0210464A2 Forming contoured shapes
02/03/1987US4640113 Sheet-bending press incorporating a device for continuous monitoring of the bending angle
01/1987
01/22/1987DE3524694A1 Clamping device for top tools in folding presses
01/21/1987EP0116046B1 Hydraulic press
01/15/1987DE3524940A1 Method for the production of short ends of thick-walled pipe lengths of different dimensions for offshore pipes and pressure vessels
01/13/1987CA1216504A1 Device and method for bending corrugated plates
01/13/1987CA1216503A1 Metal sheet folding and shearing machine
01/06/1987US4633698 Method for preforming a substantially flat blank of an open clamp
12/1986
12/31/1986CN85205054U Plate type heat-exchanging unit
12/30/1986EP0205992A2 Method of bending metal strip, in particular for can bodies
12/16/1986US4628721 Method of roll forming cylindrical pipe
12/10/1986EP0204290A2 A sheetmetal rolling machine for making a conical shell from a sheetmetal blank
12/10/1986EP0120868B1 Roll edging machine
12/09/1986US4627255 Apparatus for bending metal strip
11/1986
11/04/1986US4620435 Deflection compensating assembly for fabricating machine tools
10/1986
10/28/1986US4619131 Method for bending sheets
10/22/1986EP0198779A2 Drawing device for forming a tube starting from a metal strip
09/1986
09/30/1986US4614105 Apparatus for manufacturing baffles for shell and tube type heat exchangers
09/23/1986US4612796 Hydraulically actuated tooling clamps for the ram and bed of a press brake and the like
09/02/1986US4608852 Press machine
08/1986
08/27/1986EP0192295A2 Structural beam and panel systems and methods for making the same
08/19/1986US4606213 Tool for producing bends in curved surfaces
08/19/1986US4606208 Pipe forming apparatus
08/19/1986US4606119 Method and apparatus for forming a smooth tube from a flat tape
08/05/1986US4603807 Mill for roll forming a fluted tube
07/1986
07/29/1986CA1208534A1 Adapter device for mounting punches on a bending press
07/29/1986CA1208531A1 Portable sheet bending brake
07/29/1986CA1208530A1 Combined portable sheet bending brake and coil holder
07/15/1986CA1207810A1 Apparatus for folding a sheet of material into a folder
07/09/1986EP0186909A2 Apparatus for adjusting tool length of bending machine
07/08/1986US4599080 Method for folding jacket material for disk or the like
07/01/1986US4597277 Process and apparatus for producing reinforced metal strips
06/1986
06/25/1986EP0185299A1 Pass-through guiding device of a seam-welding machine for the production of tubular blanks
06/17/1986US4595135 Method and apparatus for forming heat exchanger tubes
06/17/1986US4594870 Automatic bending apparatus
06/17/1986US4594867 Sheet bending machine
06/10/1986US4593550 Strip preparation rollers
06/10/1986CA1205732A1 Tool arrangement for a bending press
06/04/1986EP0182868A1 Pipe forming mill and method
06/03/1986US4592518 Coil holder
05/1986
05/27/1986US4590784 Press brake
05/27/1986US4590783 Press forming process and apparatus therefor
05/27/1986US4590781 Method for forming an electric resistance welded steel pipe
05/20/1986US4589836 Hydraulic press
05/14/1986EP0065953B1 Apparatus for manufacturing a metal pipe
05/06/1986US4586361 Press brake deflection compensation structure
04/1986
04/22/1986US4583391 Adjustable gage stop
04/15/1986US4581917 Forming disc exchanging method and apparatus
04/08/1986US4580437 Press construction
04/08/1986US4580434 Deflection compensating assembly for a press brake
04/08/1986US4580433 Method of bending shaped metal sheet and apparatus for carrying out the method
04/02/1986EP0176167A1 Portable metal fabricating apparatus
04/02/1986EP0176073A2 Method of bending plate materials
04/01/1986US4578980 Angle indicator for hand operated sheet metal brake
04/01/1986US4578978 Roll forming apparatus
03/1986
03/25/1986US4577538 Backgauge device
03/11/1986US4574611 Device for bending metal stock
02/1986
02/25/1986CA1201049A1 Apparatus and method for press forming
02/18/1986US4570474 Apparatus for bending metal plate in widthwise direction
02/12/1986EP0170954A2 Profiling installation with at least one profiling machine
01/1986
01/28/1986US4566304 Sheet metal bending brake
01/21/1986US4565084 Method and a tool for bending the edge of thick sheet metal
01/21/1986CA1199562A1 Plate bending method and apparatus
01/14/1986US4564765 Optoelectronic method and apparatus for measuring the bending angle of materials
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