Patents for B21D 24 - Special deep-drawing arrangements in, or in connection with, presses (1,969)
12/2008
12/10/2008EP1861214B1 Method and device for controlling and regulating servo-electric die cushions
12/10/2008CN100441335C Controller for die cushion mechanism
12/03/2008CN100439002C Press molder and cushion ring
11/2008
11/26/2008EP1994999A1 Die cushion mechanism, and apparatus and method for controlling the same
11/26/2008EP1994998A1 Cushion load control device and press machine having cushion load control device
11/20/2008WO2008140122A1 Thin plate press molding device and thin plate press molding method
11/18/2008CA2357854C Sheet hydroforming process and system for its implementation
11/13/2008WO2008134990A1 Drive system of a multi-ram forming press
11/12/2008EP1990109A1 Hot-forming die, press-forming device, and hot press-forming method
11/12/2008CN101301669A Method for improving pulling and forming performance of skin part
11/12/2008CN101301668A Oil press for head
11/05/2008CN201143535Y Push rod hydraulic balancing device of vehicle exterior cladding element draw forming mould
10/2008
10/29/2008EP1985389A2 Press for cutting highly secure sheet metal parts
10/29/2008CN100429014C Method of press molding and molding device
10/22/2008EP1981663A1 Method and deep-drawing device for the deep drawing of sheet metal
10/22/2008CN100427235C Press-formed workpiece with an increased corner portion thickness and apparatus and method for manufacture thereof
10/16/2008DE102008007546A1 Pressformsatz und -verfahren Die set and procedures
10/09/2008US20080245114 Laundry treating apparatus and method of manufacturing a front cover for a laundry treating apparatus
10/08/2008EP1976651A1 Active reconfigurable stretch forming
10/08/2008CN100423865C Composite flexible cushion for multi-spot forming equipment
10/01/2008EP1973679A2 Method for delaying of cooling and hardening of desired zones of a sheet during a hot metal stamping process
09/2008
09/25/2008US20080229802 Method of Forming a Metal Sheet Blank
09/24/2008EP1973019A1 Device for judging collision of a die cushion mechanism and system for judging collision
09/23/2008CA2365771C Method and apparatus for forming a metal sheet under elevated temperature and air pressure
09/17/2008EP1554067B1 Method and apparatus for reducing wrinkle formation in deep drawing
09/10/2008CN101261508A Device for judging collision of a die cushion mechanism and system for judging collision
09/10/2008CN101259510A Stamping method for using high-strength steel plate to manufacture automobile rear bumper steel girder
09/10/2008CN101259500A Scaly-type pressure-adjustable covering part blank holder device
09/10/2008CN101259499A Multi-point continuous height-adjustable draw-bead structure
09/10/2008CN101259498A Forming method and forming device for battery shell
09/03/2008CN100415402C Die cushion mechanism, and device and method for controlling the same
08/2008
08/14/2008WO2008064669A3 Die cushion device comprising a modular hybrid drive unit
08/14/2008WO2008064669A2 Die cushion device comprising a modular hybrid drive unit
08/14/2008DE102007005011A1 Verfahren und Vorrichtung zum Tiefziehen von Rohlingen aus Blechmaterial zu flanschlosen Formlingen Method and apparatus for deep drawing blanks of sheet material to flangeless moldings
08/13/2008CN101239367A Press forming die set and method
08/13/2008CN100409965C Control device for press machine
08/13/2008CN100409964C Control device for servo die cushion
08/13/2008CN100409963C Control device for servo die cushion
08/07/2008WO2008092486A1 Method and device for deep drawing blanks made of sheet metal into flangeless molded blanks
08/06/2008CN201096709Y Round thin board centering device for metal thin plate shaping tester
08/05/2008US7406851 Die cushion controlling apparatus and die cushion controlling method
07/2008
07/31/2008DE212006000075U1 Numerisch gesteuerte, hydraulisch doppelt wirkende Umformvorrichtung Numerically controlled, double-acting hydraulic forming device
07/30/2008CN100406151C Plate material press forming method and press forming device
07/24/2008WO2008087888A1 Deep-drawing device
07/24/2008DE102007002678A1 Process for production of heat formed sheet component useful in production of sheet steel avoids short life of trimming tool, especially in trimming high strength steel sheets
07/22/2008US7401488 Die cushion apparatus
07/15/2008US7398667 Die cushion drive system
07/09/2008CN201082442Y Internally scalping device of metal tube
07/03/2008DE102006057051A1 Umformpresse mit im Schiebetisch integrierter Ziehkissenfunktionalität Forming press with built-in sliding table drawing cushion functionality
06/2008
06/26/2008WO2008075527A1 Die cushion device of press machine and method of controlling behavior of die cushion
06/19/2008US20080141751 Pressing Machine with Die Cushion Device
06/19/2008US20080141668 Electrohydraulic drawing press cushion drive
06/19/2008DE102006058630A1 Elektrohydraulischer Ziehkissenantrieb Electro-hydraulic die cushion drive
06/11/2008CN201070654Y Deep-drawing mold based on variable blank holder force
06/11/2008CN101195141A Post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle
06/10/2008CA2465134C Apparatus and method for manufacturing resin-coated metal seamless can body
06/05/2008WO2008064619A1 Forming press with a drawing cushion function integrated into the sliding table
06/05/2008US20080127838 Die Cushion Device
06/05/2008DE102007058152A1 Die cushion device for forming press, has hybrid drive unit formed by two drive units, where downward pressure causes descending movement to be blocked or decelerated only by one of drive units
06/04/2008CN100391643C Die cushion mechanism, and apparatus and method for controlling the same
06/04/2008CN100391642C Device for judging collision of a die cushion mechanism and system for judging collision
05/2008
05/21/2008CN201061812Y Clamp device for drawing sectional material
05/21/2008CN100389020C Mechanical press device
05/14/2008CN100387372C Apparatus and method of hot press-forming metal plate material
05/08/2008WO2008053604A1 Method of metal sheet press forming and skeletal part for vehicle produced thereby
05/07/2008CN101175585A Die cushion device for press machine
05/07/2008CN101172295A Special die having movable force plug for the hydraulic forming of outer housing
04/2008
04/30/2008EP1758696B1 Hybrid drawing cushion facility
04/24/2008WO2008047764A1 Press-working method, and press-working apparatus
04/24/2008CA2666678A1 Press-working method, and press-working apparatus
04/15/2008CA2313947C Deep drawing method
04/10/2008DE10055761B4 Hydraulikdruckausgleichsverfahren und Hydraulikdruckausgleichsvorrichtung für Druckbolzen Hydraulic pressure balance method and hydraulic pressure balancing device for pushpins
04/03/2008DE10249809B4 Presse Press
04/03/2008DE102006043643B3 Deep drawing process used in the production of vehicle parts and machine parts comprises impinging a drawing stamp with a drawing force, impinging a blank holder with a holding force and controlling both forces in a partial region
04/02/2008EP1656224B1 Device for controlling the drawing process in a transfer press
03/2008
03/26/2008EP1902793A2 Method for changing force gain in a die cushion control and die cushion control apparatus
03/26/2008EP1448327B1 Internally cooled punch assembly
03/26/2008CN101147939A Method for changing force control gain and die cushion control apparatus
03/20/2008WO2008032172A1 Press machine and manufacturing method using the same
03/20/2008US20080067320 Press Molder and Cushion Ring
03/19/2008CN101146630A Method and device for controlling and regulating servo-electric die cushions
03/19/2008CN100375658C Die cushion controller
03/12/2008EP1898284A2 Control device for servo die cushion
03/12/2008CN101142039A Die cushion control device
03/12/2008CN101142038A Die cushion controller
03/12/2008CN101138776A Control device of servo mold buffer
03/11/2008US7340934 Press molding die and manufacturing method of same
03/08/2008CA2592400A1 High definition door skin and method for manufacturing the same
03/05/2008CN101134217A Method for preventing cockling and cracking for the thin board deep drawing deep box shaped part or special-shaped part
02/2008
02/28/2008WO2008022607A1 Method and device for dampening cutting shock
02/20/2008EP1888269A1 Combination oil/gas-operated spring with expansion vessel
02/20/2008CN101128275A Press molding apparatus and press molding method
02/20/2008CN101125349A Side pole novel forming technology and mould
02/19/2008US7331570 Low impact gas spring
02/13/2008CN100368108C Bending stretch shaping method and shaper for low-melting point alloy mould
02/07/2008DE102006003268B4 Verfahren sowie Tiefziehvorrichtung zum Tiefziehen von Metallblechen A method, as well as deep-drawing device for deep-drawing metal sheets
02/06/2008EP1523519B1 Tool consisting of plastic material
01/2008
01/31/2008WO2008013507A1 A segmented drawing die with a binding collar
01/31/2008WO2008012188A1 Press
01/31/2008DE112006000606T5 Ziehkissen-Steuereinrichtung Die cushion controller
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