B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves

Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374)
01/2005
01/13/2005	DE10327388A1 Safety device for machine e.g. edge press or cutting or stamping machine, using evaluation of projection pattern obtained via projection light beams directed through monitored safety zone
01/13/2005	CA2537664A1 Method for producing from a metal sheet a hollow profile which is longitudinally slotted and provided with several longitudinal segments having different cross sections
01/12/2005	EP1495816A1 Bending tool with adjustable workpiece contrasting segments as well as bending machine comprising such a bending tool
01/12/2005	CN1184027C Press brake
01/06/2005	US20050000267 Press brake tool having lockable safety key
01/05/2005	EP1493506A1 Press brake tool having lockable safety key
01/05/2005	EP1280620B1 A sweep forming assembly, a bumper and a method of manufacture thereof
12/2004
12/30/2004	US20040261483 Bending roll apparatus
12/30/2004	DE10323590A1 Bending device to process profiled metal component for mass production has link core moved automatically into component by hydraulic cylinder
12/29/2004	WO2004112981A1 Device and method for bending, and bending die
12/29/2004	CN1558802A A method of bending metal roofing sheets and a bending apparatus
12/23/2004	DE10325036A1 Verfahren und Vorrichtung zum Herstellen von Biegeprofilen Method and device for producing of bending profiles
12/21/2004	US6832526 Bending method and single elongation value specifying device of bending apparatus
12/16/2004	WO2004108318A1 System for metering the bending angle in a machine for bending metallic sheets and/or sections, as well as method and machine for bending metallic sheets and/or sections using such system
12/16/2004	US20040250596 Rectangular and square double wall ducting systems
12/16/2004	US20040250592 Pivot link for sheet bending brake and sheet bending brake including pivot link
12/16/2004	US20040250436 Tool kit and method for working sheet metal trims
12/16/2004	CA2525693A1 System for metering the bending angle in a machine for bending metallic sheets and/or sections, as well as method and machine for bending metallic sheets and/or sections using such system
12/15/2004	CN2663047Y Material carrying mechanism for a bending machine
12/15/2004	CN1179805C Bending process method of plate bending machine
12/09/2004	US20040244458 Die set for press forming metal sheet and press forming method of metal sheet
12/09/2004	US20040244454 Adjustable multi-axial roll former
12/08/2004	EP1484123A1 Method and apparatus for manufacturing a bent profile
12/08/2004	EP1181118B1 Automatic bending system
12/07/2004	US6826939 Method and device for detaching plate thickness in press
12/02/2004	WO2004103599A1 Mechanical punch holder for a forming press
12/02/2004	US20040241272 Adjustable mould
12/02/2004	US20040237623 Compensating die holder
12/02/2004	US20040237617 Production device, in particular a folding press and a method for operating a production device
12/02/2004	DE19818471B4 Verfahren und Gerät zum Gesenkbiegen einer Platte aus kalt verformbarem Material Method and apparatus for flanging a plate of cold deformable material
12/01/2004	EP1480767A1 Method for reducing bending angle errors during die bending
11/2004
11/30/2004	US6823708 Sheet metal bending system provided with a press brake and a sheet metal support device and a method to prepare its control data and a computer readable storage medium that stores its control data
11/30/2004	CA2196928C Thin sheet forming dies
11/25/2004	WO2004101188A1 Tool-receiving device
11/25/2004	WO2004101187A2 Process for press forming metal tubes
11/25/2004	CA2526929A1 Process for press forming metal tubes
11/24/2004	EP1479461A1 Support system for a punch in a bending press
11/23/2004	US6820455 Metal working machine
11/23/2004	US6820451 Sweep forming assembly and method
11/23/2004	CA2433303C Roll-forming machine
11/23/2004	CA2196929C Thin sheet forming dies
11/17/2004	EP1476260A1 Press action simulator for aerial cam set up
11/17/2004	CN1546277A Manufacturing method of computer radiator fins
11/11/2004	WO2004096462A1 Roll forming device for roll forming sheet metal strips and roll segment for a roll forming device of this type
11/11/2004	DE10164002B4 Verfahren und Vorrichtung zum Biegen eines flächigen Werkstücks auf einer Schwenkbiegemaschine Method and apparatus for bending a flat workpiece onto a bending machine
11/10/2004	EP1474624A1 Single seal with resilient member
11/10/2004	CN2654240Y Hydraulic automatic plate bender
11/10/2004	CN2654239Y Indiating device of plate bending machine upper roller different plate thickness, radius pressure
11/10/2004	CN2654237Y Shaped steel mill roller device
11/10/2004	CN1545021A Intelligent robot control system for fire-water processing of large-scale steel plate with complex curved surface
11/09/2004	US6813920 Method for producing a bumper reinforcement
11/09/2004	US6813919 Method of making a frame member into U-section and C-section panel profiles
11/04/2004	US20040216502 Roll for roll forming and method therefor
11/03/2004	EP1473096A1 Roll forming device for roll forming sheet metal strips and roller segment for such a roll forming device
11/03/2004	CN1543381A Variable width roll forming apparatus
11/03/2004	CN1173789C Working device and method for band-type blade
11/02/2004	US6810710 Adjustable forming die, in particular for forming presses
11/02/2004	US6810708 Sheet metal bending machine for forming cleats
10/2004
10/28/2004	US20040211237 Automatic control of intermediate pieces in a bending press
10/27/2004	EP1470872A1 Automatic control of bending tool clamps of a bending press
10/27/2004	CN1541145A Method and device for prodn. of curved spring strip sections
10/27/2004	CN1539569A Automatic control for midde position of bending machine
10/26/2004	US6807835 Bending method and bending system
10/21/2004	US20040206152 Sheet material with bend controlling displacements and method for forming the same
10/21/2004	US20040206145 Work positioning device
10/21/2004	DE10315894A1 Bending tool for sheet metal, has back getting elements connected with a servo unit that neutralizes the effects of the back getting elements if the cross section of the of the half waves is in the processing position
10/20/2004	EP1212156B1 Device at a plate forming tool
10/20/2004	EP1058868B1 Method and apparatus for designing sheet metal parts
10/20/2004	CN2649213Y Bending die
10/20/2004	CN2649212Y Bending machine with stable-operating slider
10/14/2004	US20040200254 Apparatus for bending and transporting an aluminum sheet and method of stretch forming an aluminum metal sheet
10/13/2004	EP1466677A1 Device for handling the upper moving table carrying the punch in a bending press
10/12/2004	US6802198 Open back brake
10/07/2004	WO2004085085A1 Forming apparatus for precambered metal sections
10/07/2004	US20040194531 Mechanical bending apparatus
10/07/2004	US20040194275 Method and device for the production of a metal profile
10/07/2004	DE10314517A1 Schwenkbiegemaschine, insbesondere für Blechprofilmaterialien Bending machine, especially for sheet profile materials
09/2004
09/30/2004	US20040187552 Combination of a press brake clamping system and at least a press brake tool
09/30/2004	US20040187542 Flanging processes with radial compression of the blank stretched surface
09/30/2004	US20040187537 Method and device for forming a pipe
09/28/2004	US6797364 Composite panel
09/28/2004	US6796157 Machine for forming cheek bends in sheet metal
09/28/2004	US6796155 Sheet thickness detecting method and device therefor in bending machine, reference inter-blade distance detecting method and device therefor, and bending method and bending device
09/23/2004	DE19840260B4 Sickenmaschine zum Sicken von Blechelementen Beading machine for beading of sheet metal elements
09/22/2004	EP1459815A2 Bending machine, in particular for sheet metal profile materials
09/22/2004	EP1459034A1 Method and device for measuring lengths of a workpiece deformed by bending
09/22/2004	EP1458504A1 Method and device for changing the rolls of a tube welding stand
09/22/2004	CN1530188A Hydraulic circuit by two-direction linear driving machine tool sliding piece
09/22/2004	CN1167524C Bender and method thereof
09/21/2004	US6792785 Contact surface structure of bending die
09/16/2004	DE4042732B4 Verfahren zum Biegen eines Metallbleches und Biegemaschine mit einem Oberstempel und einer Matrize zum Biegen eines Metallbleches A method for bending a metal sheet and bending machine comprising a punch and a die for bending a metal sheet
09/16/2004	DE10164040B4 Schwenkbiegemaschine Folding Machine
09/14/2004	US6789318 Method for producing longitudinally welded helically corrugated metal tubing
09/10/2004	WO2004076161A1 Method for correcting a folding operation and folding press
09/10/2004	WO2004076089A2 Roll forming apparatus for forming sheet material into multiple shapes
09/10/2004	CA2516998A1 Method for correcting a folding operation and folding press
09/10/2004	CA2516616A1 Roll forming apparatus for forming sheet material into multiple shapes
09/09/2004	US20040173002 Method of bending metal sheets and a bending apparatus
09/09/2004	DE4314801B4 Hydraulische Anlage, insbesondere für eine Abkantpresse Hydraulic system, especially for a press brake
09/08/2004	EP1377395B1 Bending machine, especially a bending or folding press, comprising an adjustable lower tool

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