Patents for B21D 24 - Special deep-drawing arrangements in, or in connection with, presses (1,969) |
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12/18/1996 | CN1137955A Pressing method and system |
12/11/1996 | CN1137427A Pressing method and system |
11/27/1996 | EP0744230A1 Pressing method and system wherein cushion plate is lowered by shock absorbers arranged between the die and the cushion plate before holding of the blank between the die and the pressure ring |
11/27/1996 | CN1136480A Stretch controlled forming mechanism and method for forming metal blanks |
11/20/1996 | CN1135943A Method and apparatus for deep drawing |
11/19/1996 | US5575170 Tooling apparatus and method for high speed production of drawn metal cup-like articles |
11/06/1996 | EP0740968A1 Pressing method and system wherein cushion pin load is detected by load detector for diagnosis for even distribution of blank holding force |
11/06/1996 | CN1134860A Hydraulic deep dawing equipment of a pressing machine for mfg. streched thin plate former |
11/02/1996 | CA2175407A1 Pressing method and system wherein cushion pin load is detected by load detector for diagnosis for even distribution of blank holding force |
10/31/1996 | WO1996033825A1 Improved rotary cup infeed |
10/29/1996 | CA2102363C Device and method for measuring and adjusting pressing load values on a press |
10/22/1996 | US5566567 Rotary cup infeed |
10/16/1996 | EP0737278A1 Liquid spring for punch press |
10/02/1996 | DE19511379A1 Hydraulic deep-drawing unit for mfr. of two-compartment rinsing bowls |
10/02/1996 | DE19511378A1 Hydraulic deep-drawing unit for mfg. two compartment rinsing bowls |
10/02/1996 | CN1132125A Steel drum plug prodn. tech and die |
09/25/1996 | EP0733435A2 Method of diagnosing pressing machine based on detected physical value as compared with reference |
09/11/1996 | EP0730919A2 Method of and apparatus for deep drawing |
09/03/1996 | US5551274 Impact absorption for stamping press |
08/27/1996 | US5549281 Liquid spring for punch press |
08/15/1996 | WO1996024449A1 Deep-drawing tool with integral holding-down device |
08/14/1996 | CN1128686A Apparatus for deep drawing sheet metal |
08/08/1996 | DE19503874A1 Tiefziehwerkzeug mit integriertem Niederhalter Deep drawing tool with integrated low-holders |
07/30/1996 | US5540073 Method and apparatus for adjusting press operating conditions depending upon dies used |
07/24/1996 | EP0556390B1 Die cushion device of press machine |
07/10/1996 | CN1126451A Coolant spacer ring |
07/03/1996 | CN2230195Y Structure-improved buffer cylinder of punch buffer |
06/26/1996 | EP0718055A1 Apparatus including mutually communicating hydraulic cylinders for even distribution of blank-holding force on pressing machine |
06/25/1996 | US5528918 Method and apparatus for adjusting pressure of cushioning pneumatic cylinder on press when cushion platen is at setup position |
06/19/1996 | EP0716916A1 Method for adjusting the impact of upper and lower tools in a press, damping the noise, and slide drive with a device using the method |
05/29/1996 | EP0713735A1 Length compensation means in a clamping device between the upper and lower tool of a press |
05/28/1996 | US5519934 Method and apparatus for local forming of brittle material |
05/21/1996 | US5517759 Method of making a variable off-set full face wheel |
05/15/1996 | CN1122267A Hydraulic stretching apparatus of pressing machine for stretching thin plate formed products |
04/17/1996 | EP0706844A2 Device for deep-drawing of sheet metal |
04/04/1996 | DE4435069A1 Hydraulic deep drawing unit for presses |
03/27/1996 | EP0703018A1 Mechanical or hydraulic press |
03/19/1996 | US5499525 Hydraulic drive for a sheet metal forming press |
03/06/1996 | EP0699899A2 Apparatus for measuring blank holding force acting on pressure ring of a press |
02/29/1996 | WO1996005923A1 Wiping unit for ram of bodymaker |
02/29/1996 | CA2198349A1 Wiping unit for ram of bodymaker |
02/28/1996 | EP0455806B1 Apparatus and method for hydroforming sheet metal |
02/07/1996 | EP0695225A1 An apparatus in a hydraulic press |
01/31/1996 | EP0694353A2 Improved die tooling for metal working |
01/18/1996 | WO1996001159A1 Safety circuit for a press die cushion |
01/17/1996 | EP0692323A2 Press having cushioning cylinders each having two chambers whose pressure difference is adjustable to control blank-holding force |
12/26/1995 | US5477723 Device for regulating the blank-holding force in a press |
12/14/1995 | DE4419676A1 Simplified, energy-saving hydraulic under-clamp for sheet metal pressing |
12/05/1995 | US5471861 Method and apparatus for diagnosing press cushioning device, on optimum range of blank-holding force |
11/29/1995 | EP0548343B1 Electromagnetic re-draw sleeve actuator |
11/14/1995 | US5465602 Press die assembly |
11/14/1995 | US5465601 Ram for long stroke press |
11/09/1995 | DE4415577A1 Compensator for deflection in metal forming presses |
10/31/1995 | US5463558 Method for designing a binder ring surface for a sheet metal part |
10/17/1995 | US5457980 Method and device for controlling, checking or optimizing pressure of cushion pin cylinders of press by discharging fluid or initial pressure |
10/03/1995 | US5454549 Spring device |
09/27/1995 | EP0673696A1 Press having gas cylinders or plastically deformable members for even distribution of blank-holding force on pressure member through cushion pins |
09/27/1995 | EP0673695A1 Method and control arrangement for interrupting and continuing of the drawing process in double acting presses, in particular hydraulic presses |
09/20/1995 | CN1108762A Method of diagnosing pressing machine based on detected physical value as compared with reference |
09/19/1995 | US5450756 Device and method for measuring and adjusting pressing load values on a press |
09/14/1995 | WO1995024283A1 Improved lightweight ram for bodymaker |
09/12/1995 | US5450347 Method for the automatic, interactive process optimization of drawing processes in presses |
09/12/1995 | US5448902 Method for the automatic iterative process optimization of drawing processed in presses |
08/22/1995 | US5442947 Tooling apparatus and method for high speed production of drawn metal cup-like articles |
08/10/1995 | DE4403954A1 Multi-point drawing installation of mechanical and hydraulic presses |
08/10/1995 | DE19500245A1 Design of jack contact surface in sheet metal press |
07/27/1995 | WO1995020111A1 Liquid spring for punch press |
07/26/1995 | EP0664168A1 Device for deep-drawing of a sheet metal blank |
07/25/1995 | US5435166 Die cushion device for press |
07/18/1995 | US5433099 Method of draw-forming a metal sheet having an organic film |
06/14/1995 | CN1028846C Apparatus and method for hydroforming sheet metal |
06/07/1995 | CN1028725C Drawing machine |
05/30/1995 | US5419169 Method and apparatus for adjusting press operating conditions depending upon dies used |
05/24/1995 | DE4339153A1 Method of regulating the force applied to sheet during deep drawing |
05/24/1995 | DE4338828A1 Method for automatic process-optimal control of deep drawing on presses and corresponding deep drawing press |
05/23/1995 | US5417097 Process and apparatus for press forming |
05/02/1995 | US5410946 Hydraulic press machine |
04/19/1995 | CN1101594A Method and apparatus for diagnosing press cushioning device, on optimum range of blank-holding force |
03/21/1995 | US5398572 Press die assembly and method for producing the same |
02/14/1995 | US5390127 Method and apparatus for predicting post-buckling deformation of sheet metal |
01/25/1995 | EP0635320A1 Pressure pad for single-acting presses in particular for mechanical and transfer presses |
01/03/1995 | US5379227 Method for aiding sheet metal forming tooling design |
12/13/1994 | US5372026 Apparatus and method for hydroforming sheet metal |
12/08/1994 | WO1994027758A1 Coolant spacer ring |
11/30/1994 | EP0626223A1 Method and apparatus for adjusting pressure of cushioning pneumatic cylinder pressure on press, when cushion platen is at its setup position |
11/24/1994 | DE4316960A1 Reciprocating shears for the transverse cutting of profiled plates or plate profiles |
11/08/1994 | US5361617 Device for drawing sheet material on a drawing die composed of elastically yieldable material |
11/08/1994 | US5361615 Apparatus for measuring blank holding force acting on pressure ring of a press |
11/02/1994 | EP0622133A1 Method and apparatus for diagnosing press cushioning device, on optimum range of blank-holding force |
11/01/1994 | US5360649 Thickness-reduced draw-formed can |
10/27/1994 | WO1994023862A1 An apparatus in a hydraulic press |
10/25/1994 | US5357844 Run-up control for the pressure cheek in a drawing apparatus |
09/15/1994 | WO1994020236A1 Tooling apparatus and method for high speed production of drawn metal cups |
09/14/1994 | EP0614711A1 Process and device for drawing metallic blanks for the manufacture of so-called deep drawn pieces |
09/07/1994 | EP0613740A1 Process and hydraulic press for the pressing of sheets |
08/31/1994 | EP0612992A2 Method of diagnosing pressing machine based on detected physical value as compared with reference |
08/30/1994 | CA2006867C Drawing machine |
08/23/1994 | US5339665 Die-cushion apparatus of press machine |
08/18/1994 | DE4304329A1 Thermoforming press |
07/06/1994 | CN1025297C Method and device for pressing sheet material with deformable punch under ram |