Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374)
01/2004
01/29/2004WO2004009262A1 Metal plate, method for making same and method for folding same
01/29/2004US20040019402 Intelligent system for generating and executing a sheet metal bending plan
01/29/2004DE20315726U1 Bending press tool is fabricated of a series of layers of different profile
01/29/2004DE10326554A1 Verfahren zum Herstellen einer Stossstangenverstärkung A method of manufacturing a bumper reinforcement
01/29/2004DE10228294A1 Vorrichtung und Verfahren zum werkzeuglosen Profilieren Apparatus and method for tool-free profiling
01/29/2004DE10160004B4 Verfahren und Vorrichtung zum Wechseln der Walzen in einem Rohr-Schweißgerüst Method and device for changing the rolls in a pipe welding scaffold
01/29/2004CA2492814A1 Metal plate, method for making same and method for folding same
01/28/2004CN1136064C Device for and method of bending iron plate for outer case of refrigerator
01/27/2004US6681613 Chimney flashing fabrication tool
01/21/2004EP1382402A2 Device for the manufacture of tubes from metal plates
01/21/2004EP1381478A1 Method and device for the production of curved spring strip sections
01/21/2004CN1135144C Bending-processed product and bend processing method and bend processing apparatus thereof
01/20/2004US6678938 System for fabricating muntin bars from sheet material
01/15/2004US20040007043 Negative angle forming type rotary cam moving apparatus
01/14/2004EP1380360A1 Negative angle forming type rotary cam moving apparatus
01/14/2004CN2598678Y Multifunctional edge bending machine
01/14/2004CN1468156A Method for precision bending of a sheet of material and slit sheet therefor
01/14/2004CN1467044A Negative angle forming type rotary cam moving apparatus
01/13/2004US6678568 Sheet metal working graphic data generation method and apparatus
01/13/2004US6675627 Method and device for forming conical tube casings
01/13/2004US6675619 Sheet bending brake
01/12/2004CA2403565A1 Negative angle forming type rotary cam moving apparatus
01/08/2004WO2004002650A1 Manufacturing device, particularly a folding press, having electronic tool detection
01/08/2004WO2004002645A1 Method and apparatus for bending
01/07/2004EP1377395A1 Bending machine, especially a bending or folding press, comprising an adjustable lower tool
01/07/2004CN2597120Y Vacuum forming steaming box movable ring plate rolling machine
01/07/2004CN1466498A Method and installation for making a workpiece comprising at least a tubular section
01/07/2004CN1466497A Metal sheet part bending order and bending die proposing devece and proposing method
01/06/2004US6672127 Metal sheet bending device with rotation inhibiting function
01/01/2004US20040000181 Apparatus and method for roll forming shaped members
12/2003
12/31/2003WO2004000478A1 Adjustable mould
12/30/2003US6668612 Device for holding a sheet metal blank in a forming press
12/24/2003WO2003106065A1 A method in the control of a machine tool cell
12/24/2003CA2489381A1 A method in the control of a machine tool cell
12/18/2003WO2003104711A1 A safety system
12/18/2003WO2003095125A3 Production device, especially a bending press, and method for operating said production device
12/18/2003US20030230129 Method for producing a bumper reinforcement
12/18/2003US20030229983 Method for the manufacture of bundles of metal sheets of annular shape
12/18/2003US20030229977 Dump truck bed forming apparatus
12/16/2003US6662619 Mold clamping device for pressing machine
12/16/2003US6662618 Physical marking formed along the bending line; accuracy; computer aided design
12/16/2003US6662610 Method and system for bending
12/16/2003US6662426 Method for manufacturing loop hanger for seat belt
12/11/2003US20030226388 Rotary drive apparatus for rotary body
12/10/2003EP1369187A2 Rotary drive apparatus for rotary body
12/10/2003CN2590692Y Guide rail rype regulator for cold bend forming press
12/09/2003US6660993 Safety apparatus and protection method for machines
12/07/2003CA2392582A1 Rotary drive apparatus for rotary body
12/04/2003US20030221476 Tool clamping device for a shaping tool, especially for a press brake
12/04/2003US20030221467 Method for operating a bending press and bending press, especially a folding bending press
12/03/2003EP1366832A2 Tool coupling device, particularly for press machines
12/02/2003US6656099 Bending press system
12/02/2003US6655182 Apparatus and method for reshaping tubes
11/2003
11/27/2003WO2003097267A1 Bending route-controlled plate material bending machine
11/25/2003US6651472 Precision press brake
11/25/2003US6651471 Self-centering oscillating fork, particularly for four-point angle measuring in a press brake
11/25/2003US6651304 Method for fabricating contour muntin bars from sheet material
11/20/2003WO2003095125A2 Production device, especially a bending press, and method for operating said production device
11/20/2003US20030213321 Hollow rack shaft and manufacturing method thereof
11/20/2003US20030213276 Retro-fit roll forming mill with jack screw
11/20/2003DE20023261U1 Forming two opposite flanges on a metal sheet, involves moving metal sheet from front to back end, and vice versa, of a rollformer to form the corresponding flanges
11/19/2003CN1456400A Metal tube and its manufacturing method
11/18/2003US6647754 Variable width roll forming apparatus
11/13/2003US20030211352 Metal tubular body and manufacturing method thereof
11/12/2003EP1361018A1 Metal tubular body and manufacturing method thereof
11/12/2003CN2585715Y Bender for mfg. C-shaped member of plastic-steel door/window hardware member
11/12/2003CN1455710A Bending method and device therefor
11/11/2003US6644091 Lower die for a bending machine
11/11/2003US6644090 Safety tool for supporting and holding at least one interchangeable utensil, particularly on a press-bending machine
11/11/2003US6644086 Retro-fit roll forming mill with jack screw
11/11/2003US6644082 Precision press brake
11/11/2003US6644080 Press brake worksheet positioning system
11/05/2003EP1359050A2 Method for producing a slide with an internal toothing and slide produced according to this method
11/05/2003EP1358951A1 Bending device and bending method
11/05/2003EP1133368B1 Locking device for securing a tool in a machine
11/05/2003CN2584310Y Regulation device of cold bending forming press
11/05/2003CN2584309Y Hand bender
11/04/2003US6640605 Method of bending sheet metal to form three-dimensional structures
11/04/2003US6640600 Bending device
10/2003
10/30/2003US20030201574 Process for bending a workpiece
10/29/2003CN2582774Y Dentless bending mould
10/28/2003US6637252 Manufacturing device, in particular a folding press
10/22/2003EP1015150B1 Method and apparatus for the production of bent sheet metal pieces
10/21/2003US6634204 Sheet metal follower for a bending press
10/16/2003US20030192361 Folding system for a cutting blade
10/16/2003US20030192356 Method and installation for making a workpiece comprising at least a tubular section
10/15/2003EP1202825B1 Method and device for forming a corner limited on three sides, from a plate-shaped material with an even surface
10/15/2003CN1124182C Method for making printed angle rectangle section steel pipe
10/14/2003US6631631 Two-roll rounding machine and method for rounding sheet-metal blanks
10/09/2003US20030188561 Open back brake
10/09/2003US20030188417 System for fabricating muntin bars from sheet material
10/08/2003EP1350580A2 Method for making a vehicle axle with an essentially U-shaped cross section
10/08/2003CN2578007Y Turn-over cold bending accessories
10/08/2003CN1447723A Tool Clamping device for shaping tool, esp. for press brake
10/08/2003CN1447722A Method for operating bending press and bending press, esp. folding bending press
10/07/2003US6629632 Apparatus and method for manufacturing hollow shafts
10/07/2003US6629442 Cutting blade bending apparatus capable of precisely forming acute angle
10/02/2003WO2003080268A1 Multiple laser safety system
10/02/2003WO2003080267A1 Presser die exchanging device in plate bending machine
10/01/2003EP1347844A1 Method for precision bending of a sheet of material and slit sheet therefor
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