US3890819A - Apparatus for deforming sheet metal blanks by fluid pressure - Google Patents
Apparatus for deforming sheet metal blanks by fluid pressure Download PDFInfo
- Publication number
- US3890819A US3890819A US382506A US38250673A US3890819A US 3890819 A US3890819 A US 3890819A US 382506 A US382506 A US 382506A US 38250673 A US38250673 A US 38250673A US 3890819 A US3890819 A US 3890819A
- Authority
- US
- United States
- Prior art keywords
- pressure
- annular
- clamping
- clamping means
- central portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
- B21D26/025—Means for controlling the clamping or opening of the moulds
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/04—Blank holders; Mounting means therefor
- B21D24/08—Pneumatically or hydraulically loaded blank holders
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49805—Shaping by direct application of fluent pressure
Definitions
- Another object of the present invention is the provision of such apparatus, in which the peripheral portions of the blank are gripped with a pressure that varies as the pressure with which the central portion of the blank is deformed.
- apparatus comprising an outer body 1 which is a figure of revolution and is generally cylindrical or cup-shaped.
- a blank holder 2 which is also a figure of revolution, is axially slidably disposed within body 1.
- Piston 3 slides coaxially with a fluidtight fit within blank holder 2.
- An annular holding die 4 which is also a figure of revolution, is disposed within body 1 in coaxial superposed relation with holder 2 and piston 3, and has an outwardly directed peripheral flange 4 which is received beneath an inwardly directed annular flange 1 at the upper extremity of body 1, and a central opening 4".
- Die 4 is releasable from the engaged relationship with body 1 which is shown in the drawing, by means of a bayonnet lock or detachable interengaging portions, or other conventional means (not shown). In this way, the assembly can be opened for the insertion and removal of workpieces.
- Holder 2 has a flat annular surface confronting die 4, which is faced with a gasket 5 of a material softer than either holder 2 or the metal sheet to be deformed.
- At least one opening 6 extends through the cylindrical axially-extending stem of holder 2 to convey to the radially outer side of holder 2 the same fluid pressure that acts on the radially inner side of holder 2 and on the circular blank 7.
- holder 2 is provided with an axially extending passageway 8; and the radially inner end of the hole or holes 6 communicates with the passageway 8, while the radially outer end of hole or holes 6 communicates with an annular cylinder chamber 9 defined between body 1 and holder 2.
- Body 1 is bolted to a support (not shown) by bolts or other fasteners (not shown) that pass through a flange l thereon.
- the cavity of body 1 in which the head 11 of holder 2 is disposed is cup-shaped and of a depth greater than the depth of the head of holder 2.
- Seals 12 provide slidably sealed contact between piston 3 and the supporting side walls of passageway'8, and between holder 2 and body 1 on opposite sides of chamber 9.
- a sheet metal blank in the form ofa circular workpiece 7 is placed on gasket and die 4 is returned to the position shown in the drawing.
- Holder 2 can then be urged against the workpiece by any desired means (not shown), after which piston 3 is advanced upwardly as seen in the drawing.
- Passageway 8 and chamber 9 are filled with hydraulic fluid such as oil, whose pressure is increased by the upward movement of piston 3.
- This upward movement has two effects:
- the pressure imparted to the hydraulic fluid causes workpiece 7 to deform and bulge upwardly into opening 4", as seen in the drawing; and also the pressure of the hydraulic fluid transmitted through hole or holes 6 to chamber 9, causes holder 2 to advance in the manner of a piston, thereby more tightly clamping the annular peripheral portions of the workpiece against radially inward movement.
- the area of chamber 9, measured in a plane perpendicular to the axis of the apparatus should be larger than the area of workpiece 7 that is exposed to the fluid by passageway 8, the broad range of ratios of these two areas being 1:1 to l0:l.
- Apparatus for deforming only a central portion of sheet material by fluid pressure comprising means to clamp a peripherial portion of said material entirely about said central portion while leaving said central portion exposed, means mounting said clamping means for free and unimpeded movement toward said material, means to apply the pressure of a fluid under pressure to said exposed central portion of said material to deform only said central portion of said material, and means to apply said pressure also to said clamping means so that the force with which said peripheral portion is clamped by said clamping means varies directly as said pressure over the entire range of said pressure thereby to maintain said peripheral portion against substantial radially inward movement over said entire range of pressure.
- said clamping means comprising an annular member, means mounting said annular member for movement toward and away from the material to be clamped, and means for applying said fluid to said material centrally of said annular member.
- clamping means having a central opening through which said fluid is applied to said material, said applying means comprising at least one opening through said clamping means communicating between said annular chamber and said central opening.
- said clamping member having a head thereon that defines said annular chamber between said head and the bottom of a cup-shaped recess Within said body.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT51741/72A IT965936B (it) | 1972-07-25 | 1972-07-25 | Dispositivo di serraggio per lamiere |
Publications (1)
Publication Number | Publication Date |
---|---|
US3890819A true US3890819A (en) | 1975-06-24 |
Family
ID=11275655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US382506A Expired - Lifetime US3890819A (en) | 1972-07-25 | 1973-07-25 | Apparatus for deforming sheet metal blanks by fluid pressure |
Country Status (5)
Country | Link |
---|---|
US (1) | US3890819A (de) |
BE (1) | BE802743A (de) |
DE (1) | DE2337113A1 (de) |
FR (1) | FR2193660B3 (de) |
IT (1) | IT965936B (de) |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4102167A (en) * | 1976-01-16 | 1978-07-25 | Black, Sivalls & Bryson, Inc. | Method of manufacturing integral fluid pressure rupturable apparatus |
US4441350A (en) * | 1981-12-15 | 1984-04-10 | Bs&B Safety Systems, Inc. | Scored reverse buckling rupture disk manufacturing method |
US4458516A (en) * | 1983-02-11 | 1984-07-10 | Bs&B Safety Systems, Inc. | Method for manufacturing rupture disks |
US4481850A (en) * | 1981-12-15 | 1984-11-13 | Bs&B Safety Systems, Inc. | Scored reverse buckling rupture disk apparatus |
US4492103A (en) * | 1983-02-11 | 1985-01-08 | Bs&B Safety Systems, Inc. | Apparatus for manufacturing rupture disks |
US4597151A (en) * | 1980-02-04 | 1986-07-01 | Solartron Electronics, Inc. | Fluid pressure transmitting diaphragm assembly and method of manufacture |
US4731617A (en) * | 1986-08-19 | 1988-03-15 | Gray Robert E | Apparatus and method for making paraboloidal surfaces |
US5157969A (en) * | 1989-11-29 | 1992-10-27 | Armco Steel Co., L.P. | Apparatus and method for hydroforming sheet metal |
US5410132A (en) * | 1991-10-15 | 1995-04-25 | The Boeing Company | Superplastic forming using induction heating |
US5587098A (en) * | 1991-04-05 | 1996-12-24 | The Boeing Company | Joining large structures using localized induction heating |
US5591370A (en) * | 1991-04-05 | 1997-01-07 | The Boeing Company | System for consolidating organic matrix composites using induction heating |
US5599472A (en) * | 1991-04-05 | 1997-02-04 | The Boeing Company | Resealable retort for induction processing of organic matrix composites or metals |
US5624594A (en) * | 1991-04-05 | 1997-04-29 | The Boeing Company | Fixed coil induction heater for thermoplastic welding |
US5641422A (en) * | 1991-04-05 | 1997-06-24 | The Boeing Company | Thermoplastic welding of organic resin composites using a fixed coil induction heater |
US5645744A (en) * | 1991-04-05 | 1997-07-08 | The Boeing Company | Retort for achieving thermal uniformity in induction processing of organic matrix composites or metals |
US5683607A (en) * | 1991-10-15 | 1997-11-04 | The Boeing Company | β-annealing of titanium alloys |
US5705794A (en) * | 1991-10-15 | 1998-01-06 | The Boeing Company | Combined heating cycles to improve efficiency in inductive heating operations |
US5710414A (en) * | 1991-04-05 | 1998-01-20 | The Boeing Company | Internal tooling for induction heating |
US5723849A (en) * | 1991-04-05 | 1998-03-03 | The Boeing Company | Reinforced susceptor for induction or resistance welding of thermoplastic composites |
US5728309A (en) * | 1991-04-05 | 1998-03-17 | The Boeing Company | Method for achieving thermal uniformity in induction processing of organic matrix composites or metals |
US5793024A (en) * | 1991-04-05 | 1998-08-11 | The Boeing Company | Bonding using induction heating |
US5847375A (en) * | 1991-04-05 | 1998-12-08 | The Boeing Company | Fastenerless bonder wingbox |
US5865054A (en) * | 1989-08-24 | 1999-02-02 | Aquaform Inc. | Apparatus and method for forming a tubular frame member |
US5914064A (en) * | 1991-10-15 | 1999-06-22 | The Boeing Company | Combined cycle for forming and annealing |
US6087640A (en) * | 1991-10-15 | 2000-07-11 | The Boeing Company | Forming parts with complex curvature |
GB2354730A (en) * | 1999-09-28 | 2001-04-04 | Neutron Holdings Ltd | Apparatus for, and method of, moulding an article |
US20040256383A1 (en) * | 2003-06-18 | 2004-12-23 | Fischer John R. | Apparatus and methods for single sheet forming using induction heating |
GB2440596A (en) * | 2006-07-31 | 2008-02-06 | Stephen Stanger Moore | Ferrous fungi/Metal mushrooms |
CN103464576A (zh) * | 2013-09-23 | 2013-12-25 | 上海电机学院 | 一种汽轮发电机护环补液胀形装置及方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3704349A1 (de) * | 1987-02-12 | 1988-08-25 | Haar Maschbau Alfons | Werkzeug zum tiefziehen von blechteilen |
DE4309317A1 (de) * | 1993-03-23 | 1994-09-29 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Freiformumformen von Halbzeugen |
DE19952104A1 (de) * | 1999-10-29 | 2001-05-03 | Schuler Smg Gmbh & Co Kg | Vorrichtung zum Umformen von Metallblech |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3149596A (en) * | 1961-06-13 | 1964-09-22 | Gen Dynamics Corp | Forming apparatus |
US3373585A (en) * | 1964-09-21 | 1968-03-19 | Reynolds Tobacco Co R | Sheet metal shaping apparatus and method |
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 |
US3751962A (en) * | 1970-11-06 | 1973-08-14 | Reynolds Metals Co | Method and apparatus for making a drawn article |
-
1972
- 1972-07-25 IT IT51741/72A patent/IT965936B/it active
-
1973
- 1973-07-20 DE DE19732337113 patent/DE2337113A1/de active Pending
- 1973-07-24 BE BE6044251A patent/BE802743A/xx unknown
- 1973-07-25 US US382506A patent/US3890819A/en not_active Expired - Lifetime
- 1973-07-25 FR FR7327149A patent/FR2193660B3/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3149596A (en) * | 1961-06-13 | 1964-09-22 | Gen Dynamics Corp | Forming apparatus |
US3373585A (en) * | 1964-09-21 | 1968-03-19 | Reynolds Tobacco Co R | Sheet metal shaping apparatus and method |
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 |
US3751962A (en) * | 1970-11-06 | 1973-08-14 | Reynolds Metals Co | Method and apparatus for making a drawn article |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4102167A (en) * | 1976-01-16 | 1978-07-25 | Black, Sivalls & Bryson, Inc. | Method of manufacturing integral fluid pressure rupturable apparatus |
US4597151A (en) * | 1980-02-04 | 1986-07-01 | Solartron Electronics, Inc. | Fluid pressure transmitting diaphragm assembly and method of manufacture |
US4441350A (en) * | 1981-12-15 | 1984-04-10 | Bs&B Safety Systems, Inc. | Scored reverse buckling rupture disk manufacturing method |
US4481850A (en) * | 1981-12-15 | 1984-11-13 | Bs&B Safety Systems, Inc. | Scored reverse buckling rupture disk apparatus |
US4458516A (en) * | 1983-02-11 | 1984-07-10 | Bs&B Safety Systems, Inc. | Method for manufacturing rupture disks |
US4492103A (en) * | 1983-02-11 | 1985-01-08 | Bs&B Safety Systems, Inc. | Apparatus for manufacturing rupture disks |
US4731617A (en) * | 1986-08-19 | 1988-03-15 | Gray Robert E | Apparatus and method for making paraboloidal surfaces |
US5865054A (en) * | 1989-08-24 | 1999-02-02 | Aquaform Inc. | Apparatus and method for forming a tubular frame member |
US5157969A (en) * | 1989-11-29 | 1992-10-27 | Armco Steel Co., L.P. | Apparatus and method for hydroforming sheet metal |
US5372026A (en) * | 1989-11-29 | 1994-12-13 | Armco Steel Company | Apparatus and method for hydroforming sheet metal |
US5591370A (en) * | 1991-04-05 | 1997-01-07 | The Boeing Company | System for consolidating organic matrix composites using induction heating |
US6040563A (en) * | 1991-04-05 | 2000-03-21 | The Boeing Company | Bonded assemblies |
US5847375A (en) * | 1991-04-05 | 1998-12-08 | The Boeing Company | Fastenerless bonder wingbox |
US5591369A (en) * | 1991-04-05 | 1997-01-07 | The Boeing Company | Method and apparatus for consolidating organic matrix composites using induction heating |
US5599472A (en) * | 1991-04-05 | 1997-02-04 | The Boeing Company | Resealable retort for induction processing of organic matrix composites or metals |
US5624594A (en) * | 1991-04-05 | 1997-04-29 | The Boeing Company | Fixed coil induction heater for thermoplastic welding |
US5641422A (en) * | 1991-04-05 | 1997-06-24 | The Boeing Company | Thermoplastic welding of organic resin composites using a fixed coil induction heater |
US5645744A (en) * | 1991-04-05 | 1997-07-08 | The Boeing Company | Retort for achieving thermal uniformity in induction processing of organic matrix composites or metals |
US5683608A (en) * | 1991-04-05 | 1997-11-04 | The Boeing Company | Ceramic die for induction heating work cells |
US5587098A (en) * | 1991-04-05 | 1996-12-24 | The Boeing Company | Joining large structures using localized induction heating |
US6211497B1 (en) | 1991-04-05 | 2001-04-03 | The Boeing Company | Induction consolidation system |
US7126096B1 (en) | 1991-04-05 | 2006-10-24 | Th Boeing Company | Resistance welding of thermoplastics in aerospace structure |
US5710414A (en) * | 1991-04-05 | 1998-01-20 | The Boeing Company | Internal tooling for induction heating |
US5723849A (en) * | 1991-04-05 | 1998-03-03 | The Boeing Company | Reinforced susceptor for induction or resistance welding of thermoplastic composites |
US5728309A (en) * | 1991-04-05 | 1998-03-17 | The Boeing Company | Method for achieving thermal uniformity in induction processing of organic matrix composites or metals |
US5747179A (en) * | 1991-04-05 | 1998-05-05 | The Boeing Company | Pack for inductively consolidating an organic matrix composite |
US5793024A (en) * | 1991-04-05 | 1998-08-11 | The Boeing Company | Bonding using induction heating |
US5700995A (en) * | 1991-10-15 | 1997-12-23 | The Boeing Company | Superplastically formed part |
US5410132A (en) * | 1991-10-15 | 1995-04-25 | The Boeing Company | Superplastic forming using induction heating |
US5705794A (en) * | 1991-10-15 | 1998-01-06 | The Boeing Company | Combined heating cycles to improve efficiency in inductive heating operations |
US5914064A (en) * | 1991-10-15 | 1999-06-22 | The Boeing Company | Combined cycle for forming and annealing |
US5683607A (en) * | 1991-10-15 | 1997-11-04 | The Boeing Company | β-annealing of titanium alloys |
US6087640A (en) * | 1991-10-15 | 2000-07-11 | The Boeing Company | Forming parts with complex curvature |
US5571436A (en) * | 1991-10-15 | 1996-11-05 | The Boeing Company | Induction heating of composite materials |
US5821506A (en) * | 1991-10-15 | 1998-10-13 | The Boeing Company | Superplastically formed part |
GB2354730A (en) * | 1999-09-28 | 2001-04-04 | Neutron Holdings Ltd | Apparatus for, and method of, moulding an article |
GB2354730B (en) * | 1999-09-28 | 2001-09-12 | Neutron Holdings Ltd | Apparatus for, and method of, moulding an article |
US20040256383A1 (en) * | 2003-06-18 | 2004-12-23 | Fischer John R. | Apparatus and methods for single sheet forming using induction heating |
US6914225B2 (en) | 2003-06-18 | 2005-07-05 | The Boeing Company | Apparatus and methods for single sheet forming using induction heating |
GB2440596A (en) * | 2006-07-31 | 2008-02-06 | Stephen Stanger Moore | Ferrous fungi/Metal mushrooms |
CN103464576A (zh) * | 2013-09-23 | 2013-12-25 | 上海电机学院 | 一种汽轮发电机护环补液胀形装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
BE802743A (fr) | 1973-11-16 |
FR2193660A1 (de) | 1974-02-22 |
FR2193660B3 (de) | 1976-07-09 |
IT965936B (it) | 1974-02-11 |
DE2337113A1 (de) | 1974-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3890819A (en) | Apparatus for deforming sheet metal blanks by fluid pressure | |
US3938239A (en) | Method of forming a self-flanging nut joint | |
US3768295A (en) | Forming apparatus and method | |
CN107971382B (zh) | 一种可用于板材刚性模胀形与液压胀形试验的装置及方法 | |
CA2630632A1 (en) | Method for introducing and anchoring at least one connecting element into and in a workpiece and device for carrying out said method | |
CN207971578U (zh) | 一种激光焊接用内撑夹具 | |
US11260444B2 (en) | Forming device and method for large thin-walled part with curved surface | |
TW201432161A (zh) | 拉釘及使用其之密封結構 | |
CN105881186A (zh) | 一种固液两相流研抛内齿轮的加工装置 | |
CN209206470U (zh) | 一种车削无内孔薄盘类零件外圆用的夹具 | |
US3656221A (en) | Method of assembly of joint devices and apparatus therefor | |
US5730200A (en) | Device and method for gripping a casting core in particular a sole core | |
US4843863A (en) | Container body maker die | |
US3595555A (en) | Work holder | |
GB771257A (en) | Hydraulic forming attachment for presses | |
CN101579826B (zh) | 盘类零件外定心夹紧机构 | |
US7191633B1 (en) | Forging apparatus | |
US4930342A (en) | Container leak detector | |
US8136378B2 (en) | Seal for fluid forming tools | |
CN111112932A (zh) | 一种防止法兰变形的组合焊接工装 | |
US2406281A (en) | Contact locating method | |
CN210305820U (zh) | 一种自动抱紧型气液卡盘 | |
CN209664848U (zh) | 车床用工件夹持装置 | |
CN217044319U (zh) | 零件口部封口装置 | |
US5016462A (en) | Apparatus for aligning a tool member |