US3208255A - Method and apparatus for hydraulic deep-drawing of sheet material - Google Patents

Method and apparatus for hydraulic deep-drawing of sheet material Download PDF

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Publication number
US3208255A
US3208255A US207311A US20731162A US3208255A US 3208255 A US3208255 A US 3208255A US 207311 A US207311 A US 207311A US 20731162 A US20731162 A US 20731162A US 3208255 A US3208255 A US 3208255A
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United States
Prior art keywords
pressure
blank
workpiece
punch
liquid
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Expired - Lifetime
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US207311A
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English (en)
Inventor
Burk Eugen
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SEG Hausgeraete GmbH
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Siemens Elektrogaerate GmbH
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Publication date
Priority claimed from DE1961S0074709 external-priority patent/DE1240801B/de
Application filed by Siemens Elektrogaerate GmbH filed Critical Siemens Elektrogaerate GmbH
Priority to US453131A priority Critical patent/US3286496A/en
Application granted granted Critical
Publication of US3208255A publication Critical patent/US3208255A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/203—Deep-drawing of compound articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/205—Hydro-mechanical deep-drawing

Definitions

  • My invention relates to the deep-drawing of sheet material from blanks r pre-shaped workpieces into cup-, shell-, or cuff-shaped products.
  • the die or form block constitutes a rather expensive mold of female type and that each shape to be produced requires providing a particular rubber bag or plunger, aside from the fact that the wear of the rubber bag or rubber plunger is relatively great.
  • the hydraulic deep-drawing method is performed in such a manner that the liquid acts as a matrix or form block and forces the blank material over and around the active surface portion of the drawing punch, thereby contributing essentially to giving the product the desired deepdrawn shape.
  • the pressure imposed upon the drawing punch or upon the liquid of the matrix which acts also as a shaping medium is varied in correlation to or dependence 3,Z3,Z55 Patented Sept. 28:, T965 upon the punch travel. More specifically, it is preferable to control the punch travel as well as the pressure acting upon the matrix liquid by a common program controller for simultaneous and properly correlated performance.
  • a sealing ring of pliable soft or resilient material for example leather, copper or the like into a groove of the matrix upper portion to act as a seal between the annular retainer, the blank and the surface of the matrix liquid.
  • the sealing ring is held in place under spring pressure or under the pressure of the drawing liquid, thus being pressed against the bottom side of the blank being deformed to the desired shape.
  • a method embodying the above-mentioned features of the invention is advantageously distinct from the known drawing methods, particularly by virtue of the fact that no rubber diaphragm is required and that a considerably greater degree of deformation can be obtained by a single stroke of drawing operation. Furthermore, the surface of the blank facing the pressure liquid is not subjected to mechanical stresses during the drawing operation so that in most cases a subsequent surface machining, such as polishing, grinding or the like, is no longer necessary. Also in many cases, any coatings for improving the surface conditions of the product can be provided on the blank before subjecting it to the drawing operation.
  • the manufacture of drawn products having a non-planar flange is made possible by controlling the liquid level in the pressure container.
  • the drawing ridge of the form block (die) and the bottom edge of the retainer are adapted to the desired curvature of the flange on the workpiece to be produced.
  • the drawing of the workpiece is initiated by first placing the blank upon the form block and the retainer upon the blank, so that the blank is located between the curved portions of retainer and form block that mutually determine the desired curvature in the flange of the workpiece after it is finished; and only thereafter is the pressure liquid supplied into the portion of the pressure container located between the highest point and the lowest point of the curving drawing edge of the form block.
  • another way of proceeding is to fill the pressure container with liquid only after the retainer is placed upon the blank.
  • the pressure container is vented by suitable valves or sliders while the pressure liquid is being supplied.
  • the filling of the pressure container, or the filling of that particular portion of the pressure container which is still free of liquid prior to placing the retainer upon the blank, can be effected by means of a piston entering into the pressure container or into an auxiliary cylinder or other container communicating with the pressure container.
  • the operations described can be performed with single or multiple-operation presses, and the pressure in the hydraulic pressure container that receives the matrix liquid can be controlled in dependence upon the position of the drawing punch.
  • FIG. 1 is a sectional and partly schematical elevation view of a hydraulic drawing tool according to the invention prior to the drawing operation proper.
  • FIG. 2 is a similar view and shows the same tool during an intermediate state of drawing operation.
  • FIG. 3 shows the same drawing tool at the end of the drawing stroke
  • FIG. 4 is a fragmentary view separately illustrating in section a portion of the same drawing tool.
  • FIG. 5 shows in section a hydraulic cuff-drawing tool prior to the cuff-drawing step.
  • FIG. 6 shows the same tool as FIG. 5 at the end of the cuff-drawing stroke.
  • FIG. 7 is a sectional view of a deep-drawing tool for use with pre-drawn workpieces.
  • FIG. 8 shows in section another deep-drawing tool for pre-drawn workpieces.
  • FIGS. 9 to 12 show in section one and the same drawing tool for producing a workpiece with a wavy flange, in respectively progressively different stages or operation.
  • FIG. 13 is a schematic circuit diagram of a control device shown in conjunction with a deep-drawing tool according to FIGS. 1 to 4.
  • the tool according to FIGS. 1 to 4 comprises a lower portion 1 which consitutes the form block or die and forms a container 2 for pressure liquid.
  • the inner diameter in the working portion of the form block 1 is in accordance with the outer diameter of the workpiece to be produced.
  • a sealing ring 3 surrounds the top opening of the form block 1 and is placed into an annular groove 10 which communicates with the pressure container 2 through a duct 11 (FIG. 4).
  • the sealing ring 3 (FIGS. 1 to 3) preferably consists of elastic material such as leather or rubber and may be provided with a metal cover layer.
  • the sealing ring 3 or gasket is pressed by its own resiliency or by additional springs (not shown) placed upon the bottom of the groove 10, against the blank 9 of sheet metal that is to be drawn to a cup-shaped configuration.
  • An adjustable or regulated pressure valve 4 communicates with the pressure container 2.
  • a pump 13 serves for pumping the liquid from a collecting tank 5 into the pressure container 2 through a check valve 6 located in the pressure line of the pump.
  • the upper portion of the drawing tool comprises a punch 7 whose lower surface corresponds to the inner shape of the cup to be drawn, and a hold-down member or retainer 8.
  • the retainer 8 is moved downward against and onto the previously inserted blank 9 when the punch '7 commences its downward motion, or the retainer is first moved downward upon the blank 9 and then latched in proper position.
  • the retainer 3 may be fastened to an actuating tappet, these modes and means for setting the retainer upon the blank being well known and generally used in conventional presses.
  • a timing relay preferably a program controller, as schematically indicated at 12 in FIG. 1, controls the pressure in the pressure container 2 in accordance with, or in dependence upon the travel of the punch '7. As mentioned, this is preferably done by applying pneumatic pressure through pipe 15 and cylinder 14, or upon a plurality of such actuator cylinders jointly supplied with air pressure and acting in hydraulic parallel relation (not shown) upon the pressure space 2.
  • pressure control and regulation can also be effected directly at the control valve 4.
  • a battery of such cylinders or pressure storage devices may be provided which, if desired, can be operated with respectively different pressures, and which can be switched on selectively.
  • the cupping operation proceeds as follows.
  • the blank 9 When the press is open, the blank 9 is placed coaxially upon the die block 1, the latter being filled with pressure liquid.
  • the retainer 8 presses upon the blank to close off the container space 2, thus forming it into a pressure space 2 within the die block 1. Due to the subsequent entering of the punch '7, the pre-selected pressure becomes built up in the pressure space 2 and forces the lank 9 against the surface of the punch with the result that the blank material, particularly if a conical shape is involved, bulges somewhat upwardly in the marginal zones.
  • the drawing operation then takes place not by the action of the die edge but essentially by the liquid under pressure from below (FIG. 2). Th adjustment of the amount of the upward deformation imparted to the blank at the stage represented in FIG.
  • the cross section of the die block 1 and punch 7 need not be circular or oval but may also be given polygonal or any other desired shape.
  • the invention is thus applicable for manufacture of a variety of products, for example boiler bottoms, reflectors for searchlights, hoods, for flatirons, and enclosures of any kind, taking advantage of the relatively low material and tool cost and the saving in time afforded by the novel deep-drawing method.
  • FIGS. 5 and 6 illustrate a hydraulic cuff-drawing tool in which the workpiece is first pre-drawn to the shape shown at 16 in FIG. 5 and is then hydraulicallyd rawn to a reentrant or cuff shape. It will be understood that in other respects the tool according to FIG. 5 is provided with hydraulic control devices as described above with reference to FIG. 1.
  • the operating method during cuff-drawing is as follows.
  • the blank is first placed flat upon the sealing gasket 3 of the die block 17, in the position shown by broken lines in FIG. 5.
  • the retainer 18 as well as the punch 7 are located above the blank.
  • the blank is initially pro-drawn by the downward travel of the inwardly protruding edge 19 of the retainer 18.
  • the drawing operation is continued by the punch '7 which now presses against the workpiece 16 in the downward direction (FIG. 6), acting against the cushion of pressure liquid contained in the pressure chamber of the die block 17.
  • the enclosed liquid again operates as a matrix which forces the material of the workpiece against the downwardly convex front surface of the punch.
  • the pre-drawn workpiece 16 is placed upon the neck portion of the retainer 18 that surrounds the punch 7 and is laterally held in position by a centering ring 20.
  • the desired shaping of the bottom of workpiece 16 is effected by depressing the punch 7 against the pressure of the liquid enclosed in the pressure space 2 formed by the die block 17, in the manner already explained above.
  • FIGS. 9 to 12 illustrate diflerent stages of a drawing operation relating to the production of a hollow Workpiece having a wavy flange portion.
  • the die block 1 forms a pressure space 2 for hydraulic liquid.
  • the pressure space is provided with an inlet valve 31 and an outlet valve 32.
  • the drawing edge 33 of the die block 1 has a curved shape in accordance with the desired flange curvature of the finished workpiece. The same curvature is present in the bottom edge 34 of the retainer 8.
  • the pressure liquid fills the space 2 up to a level located at about the lowest point 37 of the drawing edge 33.
  • the blank 9 When starting the process, the blank 9 is placed upon the upper edge of the drawing bulge 24 of the die block 1, as shown in FIG. 9, and the blank is secured in position by pins 23 inserted in block 1.
  • the lower portion of the retainer 8 is provided with recesses 35 mating the drawing bulges 24 of the die block 1.
  • the resulting product 41 has generally the shape of a cup with an arcuate flange 42.
  • This method is suitable for producing such products as the fenders of automobiles and other drawn products with a non-planar flange, and in most cases requires only one drawing stroke for shaping a planar blank into the ultimate shape desired.
  • FIG. 13 One embodiment of the means for controlling the pressure in the pressure space 2, in correlation to or dependence upon the travel position of the drawing punch 7, is shown in FIG. 13. Also applicable for such pressure control purposes are various valves of the slider or piston type in conjunction with linkage rods, chain drives, rack drives and the like transmission mechanisms.
  • a preferred embodiment of the control means for varying the liquid pressure in dependence upon the travel distance of the plunger will be described by way of example with reference to FIG. 13.
  • a bar 21 Connected with the plunger 7 by a bar 21 is a rail 20 guided for vertical movement in a bearing 22.
  • the rail 20 moves downwardly and upwardly in synchronism with the plunger 7.
  • Fastened on the rail 20 is a cam member 23 which is engaged by a follower roller 24 journalled on a horizontal tappet 26 guided within a bearing 25.
  • a variable pressure spring 4a is disposed which can be adjusted to set the spring force and thus the desired opening of valve 4 at a given position of cam 23.
  • the cam member 23 causes the valve 4 to be adjusted so that the pressure of the matrix liquid in container space 2 is controlled in the desired sense depending upon the travel of the plunger 7.
  • the method and equipment according to the invention afford the deep-drawing of sheet metal workpieces consisting for example of steel, copper, brass or the like, as well as of sheet material consisting of plastic, for example Plexiglas.
  • the pressure liquid may also be used for heating the blank either by providing heating means (not shown) for the pressure liquid in the die block, or by supplying the pressure liquid in hot condition to the pressure space within the die block.
  • the cheapest Way of performing the method is to employ water as the pressure liquid. If desired, however, other liquids such as oil can be used.
  • a method for hydraulic deep-drawing of a workpiece of sheet material comprising resting a blank workpiece of planar sheet material to be deformed on a hollow resilient sealing gasket projecting above and surrounding the upper edge of a container of liquid in an enclosed space so that said blank forms an upper closure for said enclosed space, holding said blank tightly against said gasket to seal off said space pressure-tight, pressing a punch against one surface of said workpiece to force it against said gasket and draw the workpiece across said container edge, simultaneously transmitting the pressure applied by said workpiece against said gasket from the latter to said liquid in said enclosed space, and simultaneously resisting the punch pressure by forcing said liquid directly against and in contact with the opposing surface to the workpiece so that while the blank is drawn across said container edge said opposing surface in contact with said gasket maintains said space pressure-tight while said blank is being deformed by said punch.
  • a method for hydraulic drawing of a workpiece of sheet material comprising resting a blank workpiece of planar sheet material to be deformed on a circumferential centrally hollow sealing surface associated with the upper edge of a container of liquid in an enclosed space, holding said blank tightly against said sealing surface to seal off said space pressure-tight, pressing a punch against one surface of said workpiece to force it against said sealing surface and to draw the workpiece against said edge while simultaneously resisting the punch pressure by forcing said liquid directly against and in contact with the opposing surface of the workpiece so that the blank is drawn across said container edge and so that said opposing surface of the workpiece in contact with said sealing surface maintains said space pressure-tight while said blank is being deformed by said punch.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US207311A 1961-07-07 1962-07-03 Method and apparatus for hydraulic deep-drawing of sheet material Expired - Lifetime US3208255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US453131A US3286496A (en) 1961-07-07 1965-05-04 Apparatus for hydraulic deep-drawing of sheet metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1961S0074709 DE1240801B (de) 1961-07-07 1961-07-07 Vorrichtung zum hydraulischen Tiefziehen
DES79575A DE1279615B (de) 1961-07-07 1962-05-23 Vorrichtung zum hydraulischen Tiefziehen

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US3208255A true US3208255A (en) 1965-09-28

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US (1) US3208255A (fr)
BE (1) BE619557A (fr)
CH (1) CH416520A (fr)
DE (1) DE1279615B (fr)
FR (2) FR1333969A (fr)
GB (1) GB971925A (fr)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495433A (en) * 1966-09-09 1970-02-17 Western Electric Co Methods of deep drawing solid plastic materials
US3516274A (en) * 1967-02-15 1970-06-23 Stanley Lewis Graham Method and device for shaping metal
US3572071A (en) * 1968-06-07 1971-03-23 Bell Telephone Labor Inc Parabolic reflector antennas
US3596485A (en) * 1968-09-12 1971-08-03 Siemens Elektrogeraete Gmbh Hydromechanical method and device for the reverse redrawing of sheet metal
US3636061A (en) * 1969-11-21 1972-01-18 Olin Corp Forming apparatus for hydraulic press
US3635061A (en) * 1968-12-09 1972-01-18 Saab Ab Forming apparatus for hydraulic press
US3678726A (en) * 1970-04-01 1972-07-25 Fredrick A Krause Associates I Hydraulic system
US4689979A (en) * 1983-12-21 1987-09-01 Honda Giken Kogyo Kabushiki Kaisha Pressing method and punch and die press for the same
EP0452541A2 (fr) * 1990-04-14 1991-10-23 W.C. Heraeus GmbH Procédé de fabrication d'objets creux en tantale
US5157969A (en) * 1989-11-29 1992-10-27 Armco Steel Co., L.P. Apparatus and method for hydroforming sheet metal
ES2103656A1 (es) * 1994-10-06 1997-09-16 Idem Construcciones Vascas S L Sistema de embuticion por agua inyectada para la conformacion de piezas.
US5865054A (en) * 1989-08-24 1999-02-02 Aquaform Inc. Apparatus and method for forming a tubular frame member
US6631630B1 (en) * 2000-09-22 2003-10-14 Board Of Trustees Of Michigan State University Hydroforming of composite materials
US20060185413A1 (en) * 2005-02-07 2006-08-24 Yasuhiro Nobata Hydroforming machine and a method of hydroforming
US7150170B2 (en) * 2003-10-14 2006-12-19 Benteler Automobiltechnik Gmbh Apparatus and process for hydraulic high-pressure forming of a sheet
US20080202184A1 (en) * 2004-11-08 2008-08-28 Thyssenkrupp Steel Ag Process for Fabricating Large-Surface metal Plate Into a Shaped Part, Such as an Outer Skin Panel of a Vehicle Body
US20090205394A1 (en) * 2008-02-14 2009-08-20 Luckey Jr George Method and apparatus for superplastic forming
US7658196B2 (en) 2005-02-24 2010-02-09 Ethicon Endo-Surgery, Inc. System and method for determining implanted device orientation
US7775966B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. Non-invasive pressure measurement in a fluid adjustable restrictive device
US7775215B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. System and method for determining implanted device positioning and obtaining pressure data
US7844342B2 (en) 2008-02-07 2010-11-30 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using light
US7927270B2 (en) 2005-02-24 2011-04-19 Ethicon Endo-Surgery, Inc. External mechanical pressure sensor for gastric band pressure measurements
US20110147995A1 (en) * 2009-12-22 2011-06-23 International Composites Technologies, Inc. Thermoplastics forming process for molding articles with complex shapes
US8016745B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. Monitoring of a food intake restriction device
US8016744B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. External pressure-based gastric band adjustment system and method
US8034065B2 (en) 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8057492B2 (en) 2008-02-12 2011-11-15 Ethicon Endo-Surgery, Inc. Automatically adjusting band system with MEMS pump
US8066629B2 (en) 2005-02-24 2011-11-29 Ethicon Endo-Surgery, Inc. Apparatus for adjustment and sensing of gastric band pressure
US8100870B2 (en) 2007-12-14 2012-01-24 Ethicon Endo-Surgery, Inc. Adjustable height gastric restriction devices and methods
US8114345B2 (en) 2008-02-08 2012-02-14 Ethicon Endo-Surgery, Inc. System and method of sterilizing an implantable medical device
US8142452B2 (en) 2007-12-27 2012-03-27 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8152710B2 (en) 2006-04-06 2012-04-10 Ethicon Endo-Surgery, Inc. Physiological parameter analysis for an implantable restriction device and a data logger
US8187163B2 (en) 2007-12-10 2012-05-29 Ethicon Endo-Surgery, Inc. Methods for implanting a gastric restriction device
US8187162B2 (en) 2008-03-06 2012-05-29 Ethicon Endo-Surgery, Inc. Reorientation port
US8192350B2 (en) 2008-01-28 2012-06-05 Ethicon Endo-Surgery, Inc. Methods and devices for measuring impedance in a gastric restriction system
US8221439B2 (en) 2008-02-07 2012-07-17 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using kinetic motion
US8233995B2 (en) 2008-03-06 2012-07-31 Ethicon Endo-Surgery, Inc. System and method of aligning an implantable antenna
US8337389B2 (en) 2008-01-28 2012-12-25 Ethicon Endo-Surgery, Inc. Methods and devices for diagnosing performance of a gastric restriction system
US8377079B2 (en) 2007-12-27 2013-02-19 Ethicon Endo-Surgery, Inc. Constant force mechanisms for regulating restriction devices
CN103157954A (zh) * 2011-12-09 2013-06-19 韶关市中机重工锻压有限公司 石油钻井平台桩腿用半圆板的锻造压制生产工艺
US8591395B2 (en) 2008-01-28 2013-11-26 Ethicon Endo-Surgery, Inc. Gastric restriction device data handling devices and methods
US8591532B2 (en) 2008-02-12 2013-11-26 Ethicon Endo-Sugery, Inc. Automatically adjusting band system
US8870742B2 (en) 2006-04-06 2014-10-28 Ethicon Endo-Surgery, Inc. GUI for an implantable restriction device and a data logger
US20140375047A1 (en) * 2013-06-22 2014-12-25 Mark L. Jones Connection fitting for connecting thermoplastic pipes
CN107745029A (zh) * 2017-11-10 2018-03-02 上海航天设备制造总厂 一种贮箱箱底整体成形方法
EP4282554A1 (fr) * 2022-05-26 2023-11-29 Japan Aviation Electronics Industry, Limited Appareil de traitement de pièce à usiner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546849A (en) * 1976-09-15 1979-05-31 British Aluminium Co Ltd Method of making metal containers
DE2802601C2 (de) * 1978-01-21 1983-12-01 Fried. Krupp Gmbh, 4300 Essen Werkzeug zum hydromechanischen Tiefziehen
DE10110161A1 (de) * 2001-03-02 2003-01-02 Audi Ag Umformwerkzeug zum hydromechanischen Tiefziehen von Werkstücken aus Blechzuschnitten

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39159C (de) * E. KlRCHEtS in Aue im Erzgebirge Hydraulische Stanze für Blechwaaren
US2766711A (en) * 1950-08-09 1956-10-16 Cincinnati Milling Machine Co Press
US2783727A (en) * 1951-09-12 1957-03-05 Lake Erie Engineering Corp Cushion die structure for apparatus for pressing sheet metal shapes
US2946303A (en) * 1957-02-01 1960-07-26 Siempelkamp And Company G Hydraulically operated presses
US2972971A (en) * 1955-07-18 1961-02-28 Hillgren Mfg Company Method of drawing door knobs
US2989019A (en) * 1957-05-20 1961-06-20 Budd Co Method of deep drawing sheet material
US3020633A (en) * 1959-04-24 1962-02-13 Olin Mathieson Fabrication of hollow articles
US3021802A (en) * 1956-03-13 1962-02-20 Glas Maurus Hydraulic press
US3046923A (en) * 1958-07-25 1962-07-31 Yolin Maurice Hydraulic stamping press with a die made of resilient material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681196C (de) * 1931-12-19 1939-09-19 Budd Edward G Mfg Co Verfahren und Vorrichtung zum Pressen grosser, unregelmaessig gestalteter Blechteile, z.B. Kotbleche fuer Kraftwagen
US2681630A (en) * 1951-01-02 1954-06-22 Mcdowell Mfg Co Metal drawing

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39159C (de) * E. KlRCHEtS in Aue im Erzgebirge Hydraulische Stanze für Blechwaaren
US2766711A (en) * 1950-08-09 1956-10-16 Cincinnati Milling Machine Co Press
US2783727A (en) * 1951-09-12 1957-03-05 Lake Erie Engineering Corp Cushion die structure for apparatus for pressing sheet metal shapes
US2972971A (en) * 1955-07-18 1961-02-28 Hillgren Mfg Company Method of drawing door knobs
US3021802A (en) * 1956-03-13 1962-02-20 Glas Maurus Hydraulic press
US2946303A (en) * 1957-02-01 1960-07-26 Siempelkamp And Company G Hydraulically operated presses
US2989019A (en) * 1957-05-20 1961-06-20 Budd Co Method of deep drawing sheet material
US3046923A (en) * 1958-07-25 1962-07-31 Yolin Maurice Hydraulic stamping press with a die made of resilient material
US3020633A (en) * 1959-04-24 1962-02-13 Olin Mathieson Fabrication of hollow articles

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495433A (en) * 1966-09-09 1970-02-17 Western Electric Co Methods of deep drawing solid plastic materials
US3516274A (en) * 1967-02-15 1970-06-23 Stanley Lewis Graham Method and device for shaping metal
US3572071A (en) * 1968-06-07 1971-03-23 Bell Telephone Labor Inc Parabolic reflector antennas
US3596485A (en) * 1968-09-12 1971-08-03 Siemens Elektrogeraete Gmbh Hydromechanical method and device for the reverse redrawing of sheet metal
US3635061A (en) * 1968-12-09 1972-01-18 Saab Ab Forming apparatus for hydraulic press
US3636061A (en) * 1969-11-21 1972-01-18 Olin Corp Forming apparatus for hydraulic press
US3678726A (en) * 1970-04-01 1972-07-25 Fredrick A Krause Associates I Hydraulic system
US4689979A (en) * 1983-12-21 1987-09-01 Honda Giken Kogyo Kabushiki Kaisha Pressing method and punch and die press for the same
US5865054A (en) * 1989-08-24 1999-02-02 Aquaform Inc. Apparatus and method for forming a tubular frame member
US5372026A (en) * 1989-11-29 1994-12-13 Armco Steel Company Apparatus and method for hydroforming sheet metal
US5157969A (en) * 1989-11-29 1992-10-27 Armco Steel Co., L.P. Apparatus and method for hydroforming sheet metal
EP0452541A2 (fr) * 1990-04-14 1991-10-23 W.C. Heraeus GmbH Procédé de fabrication d'objets creux en tantale
EP0452541A3 (en) * 1990-04-14 1992-01-02 W.C. Heraeus Gmbh Method of manufacturing hollow objects from tantalum
ES2103656A1 (es) * 1994-10-06 1997-09-16 Idem Construcciones Vascas S L Sistema de embuticion por agua inyectada para la conformacion de piezas.
US6631630B1 (en) * 2000-09-22 2003-10-14 Board Of Trustees Of Michigan State University Hydroforming of composite materials
US7150170B2 (en) * 2003-10-14 2006-12-19 Benteler Automobiltechnik Gmbh Apparatus and process for hydraulic high-pressure forming of a sheet
US20080202184A1 (en) * 2004-11-08 2008-08-28 Thyssenkrupp Steel Ag Process for Fabricating Large-Surface metal Plate Into a Shaped Part, Such as an Outer Skin Panel of a Vehicle Body
US7802458B2 (en) * 2004-11-08 2010-09-28 Thyssenkrupp Steel Ag Process for fabricating large-surface metal plate into a shaped part, such as an outer skin panel of a vehicle body
US7313939B2 (en) * 2005-02-07 2008-01-01 Toyota Jidosha Kabushiki Kaisha Hydroforming machine and a method of hydroforming
US20060185413A1 (en) * 2005-02-07 2006-08-24 Yasuhiro Nobata Hydroforming machine and a method of hydroforming
US7658196B2 (en) 2005-02-24 2010-02-09 Ethicon Endo-Surgery, Inc. System and method for determining implanted device orientation
US8066629B2 (en) 2005-02-24 2011-11-29 Ethicon Endo-Surgery, Inc. Apparatus for adjustment and sensing of gastric band pressure
US7775966B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. Non-invasive pressure measurement in a fluid adjustable restrictive device
US7775215B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. System and method for determining implanted device positioning and obtaining pressure data
US7927270B2 (en) 2005-02-24 2011-04-19 Ethicon Endo-Surgery, Inc. External mechanical pressure sensor for gastric band pressure measurements
US8016745B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. Monitoring of a food intake restriction device
US8016744B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. External pressure-based gastric band adjustment system and method
US8870742B2 (en) 2006-04-06 2014-10-28 Ethicon Endo-Surgery, Inc. GUI for an implantable restriction device and a data logger
US8152710B2 (en) 2006-04-06 2012-04-10 Ethicon Endo-Surgery, Inc. Physiological parameter analysis for an implantable restriction device and a data logger
US8187163B2 (en) 2007-12-10 2012-05-29 Ethicon Endo-Surgery, Inc. Methods for implanting a gastric restriction device
US8100870B2 (en) 2007-12-14 2012-01-24 Ethicon Endo-Surgery, Inc. Adjustable height gastric restriction devices and methods
US8377079B2 (en) 2007-12-27 2013-02-19 Ethicon Endo-Surgery, Inc. Constant force mechanisms for regulating restriction devices
US8142452B2 (en) 2007-12-27 2012-03-27 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8192350B2 (en) 2008-01-28 2012-06-05 Ethicon Endo-Surgery, Inc. Methods and devices for measuring impedance in a gastric restriction system
US8337389B2 (en) 2008-01-28 2012-12-25 Ethicon Endo-Surgery, Inc. Methods and devices for diagnosing performance of a gastric restriction system
US8591395B2 (en) 2008-01-28 2013-11-26 Ethicon Endo-Surgery, Inc. Gastric restriction device data handling devices and methods
US7844342B2 (en) 2008-02-07 2010-11-30 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using light
US8221439B2 (en) 2008-02-07 2012-07-17 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using kinetic motion
US8114345B2 (en) 2008-02-08 2012-02-14 Ethicon Endo-Surgery, Inc. System and method of sterilizing an implantable medical device
US8057492B2 (en) 2008-02-12 2011-11-15 Ethicon Endo-Surgery, Inc. Automatically adjusting band system with MEMS pump
US8591532B2 (en) 2008-02-12 2013-11-26 Ethicon Endo-Sugery, Inc. Automatically adjusting band system
US20090205394A1 (en) * 2008-02-14 2009-08-20 Luckey Jr George Method and apparatus for superplastic forming
US7614270B2 (en) * 2008-02-14 2009-11-10 Ford Global Technologies, Llc Method and apparatus for superplastic forming
US8034065B2 (en) 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8187162B2 (en) 2008-03-06 2012-05-29 Ethicon Endo-Surgery, Inc. Reorientation port
US8233995B2 (en) 2008-03-06 2012-07-31 Ethicon Endo-Surgery, Inc. System and method of aligning an implantable antenna
US8309009B2 (en) 2009-12-22 2012-11-13 International Composites Technologies, Inc. Thermoplastics forming process for molding articles with complex shapes
US20110147995A1 (en) * 2009-12-22 2011-06-23 International Composites Technologies, Inc. Thermoplastics forming process for molding articles with complex shapes
CN103157954A (zh) * 2011-12-09 2013-06-19 韶关市中机重工锻压有限公司 石油钻井平台桩腿用半圆板的锻造压制生产工艺
US20140375047A1 (en) * 2013-06-22 2014-12-25 Mark L. Jones Connection fitting for connecting thermoplastic pipes
US9285063B2 (en) * 2013-06-22 2016-03-15 Mark L. Jones Connection fitting for connecting thermoplastic pipes
CN107745029A (zh) * 2017-11-10 2018-03-02 上海航天设备制造总厂 一种贮箱箱底整体成形方法
EP4282554A1 (fr) * 2022-05-26 2023-11-29 Japan Aviation Electronics Industry, Limited Appareil de traitement de pièce à usiner

Also Published As

Publication number Publication date
CH416520A (de) 1966-07-15
DE1279615B (de) 1968-10-10
BE619557A (fr) 1962-10-15
FR1333969A (fr) 1963-08-02
GB971925A (en) 1964-10-07
FR1438088A (fr) 1966-05-06

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