Patents for B21D 37 - Tools as parts of machines covered by this subclass (19,804)
01/1999
01/27/1999EP0893171A1 Methods for constructing a die for press bending machine and determining cushion forces therefore
01/27/1999EP0893170A1 A bending machine for the production of sheet-metal articles
01/26/1999US5862582 Method for making hollow workpieces
01/21/1999WO1999003318A1 Clamping device, tool and method of mounting tools
01/20/1999EP0891823A2 A gripper element for a punch or a die of a punching machine
01/20/1999EP0891251A1 Press with a hydraulic plate
01/14/1999WO1999001240A1 Press brake tool holder
01/13/1999EP0890396A1 A device for the automatic replacement of the tools in a bending machine
01/13/1999CN2303695Y Upper tool for bending press
01/12/1999US5857377 System for producing bent sheet-metal articles and components of the system
12/1998
12/23/1998EP0885670A1 Punch press machine
12/09/1998EP0882547A2 Multi-stage assembling robot
12/06/1998CA2239646A1 Multi-stage assembling robot
12/02/1998EP0880423A1 Cutting die and method of forming
12/01/1998US5843283 Lubrication of a roll jacket of a press roller
11/1998
11/10/1998US5832771 Universal punch press for working on steel frame members of the like
11/05/1998DE19718014A1 Sheet metal container
11/03/1998US5829911 Method for forming a high-tooth spline of a hollow shaft and hollow shaft having a high-tooth spline
10/1998
10/22/1998DE19813209A1 Quick-action tool-clamping mechanism for stamping machine
10/20/1998US5823087 Punch press having a toggle joint mechanism drive
10/20/1998US5823042 Method of making an improved hot rolled I-beam and associated product
10/14/1998CN1195587A Slow-pushing face-drawing machining method and die guide mechanism using the same
10/08/1998WO1998043759A1 Forming technique using discrete heating zones
10/08/1998CA2283745A1 Forming technique using discrete heating zones
10/07/1998EP0869196A2 Cast cold tool and method for producing the same
10/07/1998EP0868273A1 Ceramic polymer composite tool
09/1998
09/30/1998CN1194186A Thin sheet forming dies
09/30/1998CN1194185A Thin sheet forming dies
09/29/1998USRE35907 Adjustable base assembly
09/29/1998US5813322 Die height correcting apparatus for press
09/29/1998US5813276 Press die of cement composite and a method of producing the same
09/29/1998US5813269 Die assembly for extruding hollow metallic articles
09/22/1998US5810704 Method of mounting die
09/17/1998WO1998040176A1 A method of making an improved hot rolled i-beam and associated product
09/09/1998EP0676279B1 Press forwardly feed die of metallic gasket
09/09/1998EP0657231B1 Band plate bending apparatus
09/01/1998US5799532 Press for drawing an associated raw material
08/1998
08/18/1998US5794486 Upper tool holder apparatus for press brake
08/11/1998US5793015 Apparatus for rapidly forming laminated dies
08/11/1998US5791852 Storage system for automatically storing and removing dies
08/11/1998US5791240 Slide device in mechanical press
08/04/1998US5787750 Folding system for a cutting blade
07/1998
07/30/1998DE19703753A1 Grip for tools which have four tangential grooves
07/30/1998DE19702882A1 Stamp with cutter die especially for blanking press
07/28/1998US5785914 Process of producing ceramic polymer composite tool
07/21/1998US5782308 Quick clamping device for at least one tool of a machine tool
07/21/1998US5782130 Apparatus for retaining tools
07/14/1998US5778749 Flexible manufacturing press assembly
07/14/1998US5778721 Tooling machine for reshaping workpieces
06/1998
06/30/1998US5771725 Method of producing a band blade, a method of bending a strip material, and an apparatus for bending a stip material
06/30/1998CA2164999C Stretch controlled forming mechanism and method for forming metal blanks
06/23/1998CA2157731C Punch selectable punch press
06/16/1998US5765458 Die follow confirming method
06/16/1998CA2105875C Automatic exchanging device of cross bar of transfer feeder and control system therefor
06/09/1998US5761944 Punching processing method and roll forming die used in this processing method
06/04/1998WO1998023438A1 Press apparatus and press system
05/1998
05/28/1998WO1998022236A1 Upper die fitting apparatus of press brake
05/26/1998US5755653 Method of exchanging die sets in a press system
05/26/1998US5755129 Press-forming method of a sheet and apparatus therefor
05/06/1998CN1180593A Extrusion and impact forging mould and preparation method
04/1998
04/29/1998EP0838279A1 Press die formed of cement-based composition and method of manufacturing the same
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
04/28/1998US5742993 Method for making hollow workpieces
04/22/1998CN2279263Y Hand-operated pressing machine
04/15/1998EP0835701A2 Die for clinch joints
04/15/1998EP0796155A4 Adjustable form die
04/15/1998CN2278550Y Die set for making aluminium alloy sections
04/14/1998US5738345 Device for generating a fixture
04/14/1998CA2069189C Method of developing complex tool shapes
04/07/1998US5736658 Comprising chromium, tungsten, transition metals, binder phase containing nickel, titanium carbide cubic phase; for tooling component used in drawing aluminum for beverage cans
04/07/1998US5735155 Method for manufacturing patterned tread plates
04/01/1998CN1177942A Apparatus and methods for forming workpieces
03/1998
03/26/1998DE19739975A1 Method for the fabrication of a laminated structure
03/04/1998EP0826431A1 Method of producing a repair paint coating
03/04/1998EP0758947A4 Apparatus and methods for forming workpieces
02/1998
02/28/1998CA2214281A1 A process for producing a repair coating
02/25/1998EP0824977A1 A manipulator for a system for producing bent sheet-metal articles
02/10/1998US5715725 Biaxial travelling clamp for securing a tool to a press
01/1998
01/27/1998US5711180 Pressing cam die
01/22/1998WO1998002296A1 Biaxial travelling clamp for securing a tool to a press
01/22/1998WO1998002295A1 Travelling clamp with removable rails
01/06/1998CA2120037C Apparatus for bending a strip material
12/1997
12/30/1997US5702733 Press working machine
12/16/1997US5697138 Apparatus and method for fabricating trimmed letters
12/09/1997US5694805 Travelling clamp with removable rails
12/04/1997DE19723084A1 Hydraulic stamping press
12/02/1997US5692409 Production of metal containers
11/1997
11/26/1997EP0777540A4 Wiping unit for ram of bodymaker
11/26/1997CN2268591Y Pre-curled mould for pipe of bend
11/20/1997DE19635447C1 Multilayer repair painting process, especially for car repairs
11/19/1997CN2267877Y Pedal portal-frame type mould frame
11/18/1997US5687605 Wiping unit for ram of bodymaker
11/11/1997US5685812 Turret punch press
11/05/1997EP0554258B1 Electromagnetically driven punch press with magnetically isolated removable electromagnetic thrust motor
10/1997
10/22/1997EP0802000A1 Die holder mounting structure
10/21/1997US5678439 Spacer
10/15/1997EP0800875A1 Method for bending and apparatus for height compensation of a strip steel punch tool
10/14/1997US5676014 Transfer mechanism for multi-stage transfer press with cross bar supports
10/08/1997CN1161257A Forming tool interchangeable die apparatus and master die set therefor
10/02/1997WO1997035710A1 Press with a hydraulic plate