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)
12/2009
12/23/2009	CN101610857A Folding device, and method for folding workpieces
12/23/2009	CN100571918C Multifunctional three-roller rolling machine with radial side-turning type machine frame
12/22/2009	US7634935 Quick upper tool coupling and uncoupling device of a press brake
12/17/2009	WO2009150065A1 Strip-like profile and method for producing said profile and pull-out guide with a profile of this type
12/17/2009	WO2009114113A3 Holow structural members, a rail system and methods of manufacturing
12/17/2009	WO2009103071A3 System for low-force roll folding and methods thereof
12/17/2009	US20090308130 Method and apparatus for utilizing bending machine die layout
12/17/2009	US20090308128 A kinematic system for clamping semifinished products by means of pressing for sheet metal shaping panelling machines
12/16/2009	EP2133161A1 Laser-welded sliding sleeve
12/16/2009	CN201361651Y Liftable rear stock stop mechanism for bending machine
12/16/2009	CN201361650Y Circle rolling machine for processing equipment such as electric steel tower, telecommunication tower and the like
12/16/2009	CN201361646Y Mechanism for adjusting straightness of sliding plate of bending machine
12/16/2009	CN201361645Y Hand-operated edge fold forming machine
12/16/2009	CN100569408C Manual plate cold-bending forming machine
12/13/2009	CA2639123A1 Roof rain channel
12/13/2009	CA2635005A1 Roof rain channel
12/11/2009	CA2635230A1 System and method for hemming components
12/10/2009	WO2009146838A1 Method for producing a large steel tube
12/10/2009	WO2009117748A3 A pressing tool
12/10/2009	US20090301158 Method for folding an edge of a sheet component in particular a sheet component of a motor vehicle chassis
12/10/2009	CA2726132A1 Method for producing a large steel tube
12/09/2009	CN101597942A Four-notch clean warehouse board
12/09/2009	CN101597941A Clean warehouse board
12/09/2009	CN101596561A Three-roller plate roll with adjustable low roll center distance
12/09/2009	CN100568937C Manufacture method of sheet-metal screen panel of back projected television
12/09/2009	CN100567544C Oriented electrical sheet containing trace amount depressor and method for manufacturing same
12/09/2009	CN100567519C Technique for producing deep-drawing cold-rolled plate based on CSP technique
12/03/2009	US20090297740 Precision-folded, high strength, fatigue-resistant structures and sheet therefor
12/03/2009	DE102008025351A1 Umformmaschine Forming machine
12/02/2009	EP2127773A1 Roll forming machine
12/02/2009	EP2127772A2 Forming machine
12/02/2009	EP2127771A1 Folding machine
12/02/2009	EP2127770A1 Apparatus for a precise and linear measurement of the bending force userful for determining the springback of a workpiece bent by a press brake
12/02/2009	EP2125261A1 Apparatus and method for bending of sheets for the manufacture of tubes
12/02/2009	CN201353601Y Follow-up roller way material support mechanism
12/02/2009	CN201353600Y Three-roller plate bending machine without reduction gearboxes
12/02/2009	CN201353599Y Double-row lightgage steel joist
12/02/2009	CN100564006C Stir forming apparatus and method
12/02/2009	CN100563910C Batch processing method for large diameter pulley rim blank
12/02/2009	CN100563863C Building panel crimping machine
12/01/2009	US7624768 Method and apparatus for forming a wire to include coil segments
12/01/2009	US7624615 Wedge activated rotating filler cam
11/2009
11/26/2009	WO2009141865A1 Plate bending method and bending angle detection device
11/26/2009	WO2009141864A1 Bending angle detection device and plate bending method
11/26/2009	US20090288512 Knob securement means for a control device
11/25/2009	EP2124126A2 Rotating knob locking mechanism
11/25/2009	EP1417051B1 Press brake tool and tool holder
11/25/2009	CN201350473Y Flange forming machine
11/25/2009	CN101585054A Curling process of hydrogenation reaction kettle barrel
11/19/2009	WO2009114577A3 Thermoformed component with integral attachment structure and method
11/19/2009	US20090282886 Multifunction hydraulic head suitable for being applied to machines for bending and forming metallic sheets
11/18/2009	EP2118553A2 Load-bearing three-dimensional structure
11/18/2009	CN101579798A Process for manufacturing steel-aluminum composite conductor rail
11/12/2009	WO2009137389A1 Razor blade and method of manufacture
11/12/2009	WO2009135796A1 Supporting core for producing hollow profiled elements
11/11/2009	CN201344158Y Multifunctional combined oil cylinder for steel plate preflexing machine
11/11/2009	CN201342576Y Assembly machine for coil pipe air duct
11/11/2009	CN201342456Y Synchronous following lifting mechanism of retaining roll table
11/11/2009	CN201342454Y Quick changer of die
11/11/2009	CN201342441Y W-shaped rib roller of steel barrel
11/11/2009	CN201342440Y Combined preloading stander
11/11/2009	CN201342439Y Three-point joint close system
11/11/2009	CN201342438Y Extra high pressure stander preloading device
11/11/2009	CN101574720A Method of using an electromagnetic forming machine to hem a plurality of panels to form a panel assembly
11/11/2009	CN100558481C Metal sheet bending machine with controllable top and bottom rolls deformation amount
11/10/2009	US7614269 Method and device for machining flange part of wheel arch
11/04/2009	EP2113316A1 Bending device
11/04/2009	EP1775041B1 Work subject material, surface protection sheet and method of working
11/04/2009	EP1080801B1 Method and apparatus for measuring a bending angle
11/03/2009	US7610789 Curling die tool
11/03/2009	US7610785 Work positioning device
11/03/2009	CA2532137C Sheet bending brake
10/2009
10/29/2009	DE102007005880B4 Rollprofiliertes Bauteil und Verfahren zu seiner Herstellung Roll profiled component and method for its manufacture
10/28/2009	CN201333479Y Metal leaf forming machine
10/28/2009	CN201333473Y Roll forming device for metal leaf forming machine
10/28/2009	CN201333472Y Adjustable electric-pole anchor ear molding device
10/28/2009	CN100553864C Method for producing container bottom cross beam
10/28/2009	CN100553815C Quick fixing mechanism of lower roller
10/27/2009	US7607334 Bending head
10/27/2009	US7607329 Method for free bending
10/22/2009	WO2009078739A3 Metal folding apparatus
10/22/2009	US20090263213 Pre-rounding element on a rounding apparatus
10/21/2009	EP2110191A1 Preliminary rounding element on a rounding device
10/21/2009	CN201329378Y Arc downward-adjusting three-roller rolling machine with lower-roller synchronic adjusting device
10/21/2009	CN101563175A Production method of multi-gauge strips
10/21/2009	CN101559539A Sheet metal laser high-precision hot-bending forming
10/21/2009	CN101559452A Full-hydraulic numerical control four-roller plate bending machine
10/15/2009	WO2009126677A2 Multi-directionally swept beam, roll former, and method
10/15/2009	US20090255315 Sheet metal bending brake with improved hinge
10/15/2009	US20090255314 Handheld brake
10/15/2009	US20090255310 Multi-directionally swept beam, roll former, and method
10/15/2009	DE102007039848B4 Schwenkbiegemaschine zum Gegenbiegen eines Werkstücks aus Blech Folding Machine for counter bending a workpiece of sheet metal
10/14/2009	EP2108757A1 Fitting angle for facade elements and method for its manufacture
10/14/2009	EP2108756A1 Fitting board for attaching a fitting angle for facade elements
10/14/2009	CN201324798Y Eliminator blanking bending die of machine oil cooler
10/14/2009	CN201324781Y Combined roller structure for cold bending forming machine
10/14/2009	CN201324780Y Plate bending machine capable of compensating deflection of upper roller
10/14/2009	CN201324779Y Quick tamping mechanism for cold bending forming machine
10/14/2009	CN201324778Y Sheet metal bending shaper
10/14/2009	CN201324777Y Compression roller position adjusting mechanism for sheet metal bending shaper

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