| Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374) |
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| 01/02/1991 | EP0405600A1 Method and apparatus for bending manufacturing of long workpiece |
| 01/01/1991 | US4981060 Cutting apparatus |
| 12/27/1990 | EP0404269A1 A press and an automatic curve-forming device therefor |
| 12/19/1990 | EP0403131A1 A bending apparatus |
| 12/19/1990 | EP0402927A2 Method and apparatus for bending flat metallic material |
| 12/18/1990 | US4977770 Automatable bending machine having crenelated rolls |
| 12/18/1990 | US4977769 Rolling machine with exchangeable rolling tools |
| 12/11/1990 | US4977010 Strips of came and method for producing the same |
| 12/11/1990 | US4976675 Automatic machine for folding flat pre-creased die-cuts into tubular shape |
| 12/04/1990 | US4974435 Roll formed with quick automated tool changer |
| 12/04/1990 | US4974434 Controlled shot peening |
| 11/28/1990 | CN1010562B Roller-swinging type profiles bender with four rollers |
| 11/14/1990 | EP0396782A1 Tool position controller of bending machine |
| 11/14/1990 | CN2065514U Shaping machine for steel curtain slideway |
| 11/13/1990 | US4969346 Apparatus for producing cold roll-formed structures |
| 11/08/1990 | DE3914762A1 Multipurpose metal forming machine tool - has rotatable tool holder to bring required tool into operation |
| 10/31/1990 | CN1010184B Method of indroducing stuff into finishing roll and guide supports therefor |
| 10/30/1990 | US4966029 Method of bending a workpiece to a predetermined bending angle |
| 10/24/1990 | CN1046297A New efficient roll mill for rolling light steel keel |
| 10/17/1990 | EP0392795A2 Die exchange apparatus for the use of a press brake |
| 10/16/1990 | US4962654 Method of bending sheet metal pieces to a predetermined bending angle |
| 10/16/1990 | CA1275201C Press forming sheet metal |
| 10/03/1990 | EP0389736A2 A roll forming machine |
| 09/20/1990 | WO1990010511A1 Apparatus for forming a pipe from a sheet metal plate |
| 09/20/1990 | WO1990010510A1 Apparatus for forming a pipe from a sheet metal plate |
| 09/19/1990 | CN2062262U Hand plate bending machine |
| 09/12/1990 | EP0387121A1 Clamping device for a long piece such as a punch, a die or such a tool on a table of a press bending machine |
| 09/12/1990 | CN2061875U Rolling machine for hollow container |
| 09/12/1990 | CN1009531B Cold roll-formed structures method and apparatus for producing same |
| 09/05/1990 | CN1045041A Method and apparatus for making clad core wire |
| 09/05/1990 | CN1009442B Shaping method and apparatus in tube rolling mills |
| 08/29/1990 | EP0384529A1 Device for working plate-shaped material |
| 08/29/1990 | EP0384287A2 Apparatus for forming long plate member |
| 08/29/1990 | CN1044915A Apparatus for forming long plate member |
| 08/29/1990 | CN1009348B Shaping method and apparatus in tube rolling mill |
| 08/22/1990 | EP0383176A1 Plate folding device |
| 08/22/1990 | CN1044776A Method for bending sheet metal and bending apparatus for performing this method |
| 08/22/1990 | CN1044775A 板材弯曲时调节弯曲锻模的垂直运动界限的装置 When bending sheet metal bending device to adjust the vertical movement of die limits |
| 08/15/1990 | CN1009171B Rounding apparatus for can welding machine |
| 08/14/1990 | US4947671 Device for manufacturing conical poles |
| 08/07/1990 | US4947014 Method and apparatus for producing can bodies of a non-circular cross-section |
| 08/07/1990 | US4945629 Vertical carrousel |
| 08/07/1990 | US4945624 Method of forming and assembling decorative awning and building facia |
| 08/01/1990 | EP0379886A1 Die device |
| 07/31/1990 | US4944176 Metal plate bending machine |
| 07/31/1990 | CA1272015A1 Manufacture of roll formed and coated articles |
| 07/10/1990 | US4939919 Roll forming machine |
| 07/04/1990 | WO1990007392A1 Method for manufacturing of square pipes from coated steel strips |
| 07/04/1990 | CA2045127A1 Method for manufacturing of square pipes from coated strips |
| 06/26/1990 | US4936126 Press brake with a displacement sensor of electric signal output |
| 06/20/1990 | CN2058355U Rolling mill for producing steel door and window |
| 06/19/1990 | US4934175 Tool for bending sheet metal and method thereof |
| 06/05/1990 | US4930339 Table with adjustable convexity for a press brake, bed or the like |
| 06/05/1990 | US4930332 Apparatus for exchanging tool for bending machine |
| 05/31/1990 | WO1990005599A1 Tool position controller of bending machine |
| 05/30/1990 | EP0370995A2 Profile roll-forming machine |
| 05/30/1990 | EP0370956A2 Method and apparatus for bending metal sheet sections |
| 05/30/1990 | EP0370582A1 Device for bending the rim of a sheet |
| 05/23/1990 | EP0369901A1 Improved bending press with intermediate hinges |
| 05/22/1990 | US4926671 Press brake |
| 05/17/1990 | DE3837603A1 Sheet-bending machine |
| 05/16/1990 | EP0368686A1 Automated rolling machine with interlocking rolls |
| 05/16/1990 | CN1042098A Forming process for automotive door and window frame section |
| 05/15/1990 | CA1269030A1 Roll forming machine with auxiliary roll set assembly |
| 05/15/1990 | CA1268925A1 Method and apparatus for performing a substantially flat blank of an open clamp |
| 05/08/1990 | US4922742 Apparatus for precision forming of sheet metal parts |
| 05/02/1990 | EP0365976A2 Profiling machine |
| 05/02/1990 | CN1041714A Technology for shaping light steel keel |
| 04/24/1990 | US4918971 Bending tool |
| 04/24/1990 | US4918966 Work table for sheet metal brakes |
| 04/19/1990 | WO1990003857A1 Support device in a press brake |
| 04/11/1990 | EP0363232A1 Method for producing a structured element having a high mechanichal resistance |
| 04/04/1990 | EP0362154A1 An automatic machine for folding flat pre-creased die-cuts into tubular shape |
| 03/28/1990 | CN1040842A Structural member with welded hollow end sections and process for forming same |
| 03/28/1990 | CN1007371B Synchronous control device of multi-hydraulic-cylinder drive |
| 03/15/1990 | DE3922653A1 Verfahren zum herstellen duennwandiger metallrohre Method for the manufacture of thin-walled metal tubes |
| 03/15/1990 | DE3830488A1 Electronic tool-recognition system for press brakes |
| 03/14/1990 | EP0358481A2 Apparatus for making gutters and the like |
| 03/13/1990 | US4907432 Safety device for a press brake or similar machine |
| 03/13/1990 | CA1266606A1 Method and apparatus for making sheets round, particularly for can bodies |
| 03/08/1990 | WO1990002005A1 Contouring of metal sheets |
| 03/07/1990 | EP0264349B1 Safety device for a folding press or analogous machine |
| 02/22/1990 | DE3925925A1 Bend setting method for workpiece shape |
| 02/21/1990 | CN1006885B Plate glass press |
| 02/20/1990 | US4901555 Hemming apparatus |
| 02/14/1990 | EP0354559A1 Industrial robot for pressing system, pressing system, and method for bending plate material |
| 02/13/1990 | US4899566 Apparatus for making gutters and the like |
| 02/08/1990 | WO1990001091A1 Structural member and process for forming same |
| 02/07/1990 | EP0353680A2 Apparatus for producing plate flanges by bending |
| 02/06/1990 | US4898015 Press brake deflection compensating device |
| 02/01/1990 | DE3826019A1 Cooling or heating rolled strip etc. - by passing coolant or heating agent through or close to at least one roller in each pair in rolling mills |
| 01/30/1990 | US4896818 Method of fabricating light-weight sections |
| 01/25/1990 | DE3824734A1 Electronic tool-recognition system |
| 01/24/1990 | EP0352097A2 A press brake and a workpiece measuring method in the press brake |
| 01/23/1990 | US4895014 Failsafe tool clamping system for press brake |
| 01/23/1990 | EP0259479A4 Cold roll-formed structures and method and apparatus for producing same. |
| 01/18/1990 | DE3921034A1 Folding press and a precurving means provided for it |
| 01/17/1990 | EP0350882A2 Device for manufacturing conical poles |
| 01/17/1990 | EP0350671A2 Apparatus for bending or straightening work pieces by plastic deformation |
| 01/09/1990 | US4891965 System for connecting a bending blade to its corresponding support in a sheet metal panel bending machine |