GB997811A - Method for forming articles from thin sheet material - Google Patents
Method for forming articles from thin sheet materialInfo
- Publication number
- GB997811A GB997811A GB13398/62A GB1339862A GB997811A GB 997811 A GB997811 A GB 997811A GB 13398/62 A GB13398/62 A GB 13398/62A GB 1339862 A GB1339862 A GB 1339862A GB 997811 A GB997811 A GB 997811A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- thin
- laminated
- cupping
- thick
- 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
Links
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
-
- 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
- Y10T29/4981—Utilizing transitory attached element or associated separate material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
997,811. Cupping. BUDD CO. April 6, 1962 [April 19, 1961], No. 13398/62. Heading B3Q. A method of forming a thin metal sheet into deep-drawn configurations is characterized by the steps of bonding the thin metal sheet to a thick metal sheet to produce a laminated sheet, of forming the laminated sheet in a forming machine having a male die, and completely removing said thick sheet of said laminated sheet from the thin sheet article. The laminated sheet 10 is cupped in an hydraulic press comprising an hydraulic cylinder 14 which actuates an upper hold-down ring 16 to grip the sheet against a lower stationary ring 18 with sufficient pressure to prevent buckling during the cupping operation. A cupping die 26 is actuated by an hydraulic cylinder 22. After the cupping operation the thicker sheet 28 is removed by heating or chemical etching after the formed laminated sheet has been annealed to remove any internal stresses created by the cold working. In an embodiment the laminated sheet comprises a thin stainless steel sheet 27 bonded to a relatively thick carbon steel sheet 28 by soldering, brazing, welding or hot roll bonding. The thick sheet is at least five times the thickness of the thin sheet and the blank lying between the blank holders is lubricated to create a uniform coefficient of friction in the blank holders. The hold-down pressure is held constant by providing a draw bead groove and mating projection on the hold-down rings. The thin sheet maintains its original thickness during the deep drawing operation. In another embodiment a hemisphere is formed from a laminated blank comprising a sheet of stainless steel sandwiched between two supporting layers of carbon steel. Two such hemispheres may be welded together to form containers for rockets or missiles. Specification 871,269 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US104169A US3135045A (en) | 1961-04-19 | 1961-04-19 | Method for forming articles from thin sheet material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB997811A true GB997811A (en) | 1965-07-07 |
Family
ID=22298998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13398/62A Expired GB997811A (en) | 1961-04-19 | 1962-04-06 | Method for forming articles from thin sheet material |
Country Status (2)
Country | Link |
---|---|
US (1) | US3135045A (en) |
GB (1) | GB997811A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110479843A (en) * | 2019-09-23 | 2019-11-22 | 北京航星机器制造有限公司 | A kind of shaping dies and multi-step forming method of hemispherical member |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3418112A (en) * | 1966-10-07 | 1968-12-24 | United Aircraft Corp | Method for forming seamless pressure vessels |
US3520170A (en) * | 1967-01-26 | 1970-07-14 | O C Wilson Jr | Louver or vane rail punching or stamping machine |
DE2406226C3 (en) * | 1973-02-20 | 1978-05-24 | Edsger Wybe Van Utrecht Dijk (Niederlande) | Method and machine for bending sheet metal around pipe sections |
JPS5339183B2 (en) * | 1974-07-22 | 1978-10-19 | ||
CN104624790A (en) * | 2013-11-13 | 2015-05-20 | 哈尔滨建成集团有限公司 | Air rectification cap deep drawing die with deep drawing beads |
CN105149443B (en) * | 2015-08-21 | 2017-04-12 | 哈尔滨建成集团有限公司 | Rigid blank holder deep drawing die for thin-walled hemispheric high-pressure membrane with flange |
CN114799001B (en) * | 2022-03-30 | 2024-07-16 | 西安航天发动机有限公司 | Thermal processing method for forming hemispherical blank of large-size storage tank by adopting single-action hydraulic press |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US200727A (en) * | 1878-02-26 | Improvement in methods of making copper bottoms for domestic boilers | ||
US1060361A (en) * | 1913-01-06 | 1913-04-29 | Theodore W Foster & Bro Company | Process of manufacturing plated goods. |
GB180489A (en) * | 1921-03-29 | 1922-06-01 | Krupp Ag | An improved process for further treating plate-shaped bodies, say, by pressing or drawing |
US2302857A (en) * | 1940-06-28 | 1942-11-24 | Gen Motors Corp | Drawing compound applicator |
US2302953A (en) * | 1940-07-23 | 1942-11-24 | Hydraulic Dev Corp Inc | Method of metal stretching, using blank-holder types of presses |
US2409254A (en) * | 1944-06-02 | 1946-10-15 | Solar Aircraft Co | Apparatus for die-forming sheet material |
US2900943A (en) * | 1953-10-19 | 1959-08-25 | Smith Corp A O | Cushioning means for double action presses |
US2865626A (en) * | 1955-02-09 | 1958-12-23 | Niagara Machine & Tool Works | Cushion for power presses |
US3040684A (en) * | 1955-07-18 | 1962-06-26 | Hillgren Mfg Co | Apparatus for drawing door knobs |
US2989019A (en) * | 1957-05-20 | 1961-06-20 | Budd Co | Method of deep drawing sheet material |
-
1961
- 1961-04-19 US US104169A patent/US3135045A/en not_active Expired - Lifetime
-
1962
- 1962-04-06 GB GB13398/62A patent/GB997811A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110479843A (en) * | 2019-09-23 | 2019-11-22 | 北京航星机器制造有限公司 | A kind of shaping dies and multi-step forming method of hemispherical member |
CN110479843B (en) * | 2019-09-23 | 2020-10-02 | 北京航星机器制造有限公司 | Forming die and multi-pass forming method of hemispherical component |
Also Published As
Publication number | Publication date |
---|---|
US3135045A (en) | 1964-06-02 |
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