JPS5577934A - Bending liquid pressure forming method for thin-walled tube - Google Patents

Bending liquid pressure forming method for thin-walled tube

Info

Publication number
JPS5577934A
JPS5577934A JP15208078A JP15208078A JPS5577934A JP S5577934 A JPS5577934 A JP S5577934A JP 15208078 A JP15208078 A JP 15208078A JP 15208078 A JP15208078 A JP 15208078A JP S5577934 A JPS5577934 A JP S5577934A
Authority
JP
Japan
Prior art keywords
tube
pressure
die
bending
loaded
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.)
Pending
Application number
JP15208078A
Other languages
Japanese (ja)
Inventor
Hiroshi Asao
Kenichi Okada
Shinobu Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15208078A priority Critical patent/JPS5577934A/en
Publication of JPS5577934A publication Critical patent/JPS5577934A/en
Pending legal-status Critical Current

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
    • 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
    • B21D26/033—Deforming tubular bodies
    • B21D26/045—Closing or sealing means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE: To form the deformed section bending tube in a body having no asymmetrical deformation, by pressing the upper and lower metal die having deformed section loading axis direction tensile force of less than yield point and inner pressure on thin-walled round tube and carrying out bending processing and then, carrying out high pressure formation maintaining the above mold in a body.
CONSTITUTION: The material tube 2 is placed on the lower die 5 in the state of rising up the upper die 1 and the loading apparatus 11 is equipped on both ends of the tube 2. The rod 7 is moved in the arrow mark direction sucking the oil in one hand side of the hydraulic cylinder 6 and the tensile force 6 is loaded on the tube 2. Air in the tube 2 is drawn out in the above condition and the pressure P1 is loaded on the tube using pressure oil etc. Next, bending formation of the tube 2 is carried out descending the die 1. Both dies are maintained in the condition making the die 1 and 5 in a body after finished the bending formation and higher pressure P2 than the pressure P1 is loaded. The tube 2 is projected tightly by the above pressure in the space formed by the dies 1, 5 and the processing is completed.
COPYRIGHT: (C)1980,JPO&Japio
JP15208078A 1978-12-11 1978-12-11 Bending liquid pressure forming method for thin-walled tube Pending JPS5577934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15208078A JPS5577934A (en) 1978-12-11 1978-12-11 Bending liquid pressure forming method for thin-walled tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15208078A JPS5577934A (en) 1978-12-11 1978-12-11 Bending liquid pressure forming method for thin-walled tube

Publications (1)

Publication Number Publication Date
JPS5577934A true JPS5577934A (en) 1980-06-12

Family

ID=15532607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15208078A Pending JPS5577934A (en) 1978-12-11 1978-12-11 Bending liquid pressure forming method for thin-walled tube

Country Status (1)

Country Link
JP (1) JPS5577934A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62118919A (en) * 1985-11-19 1987-05-30 Dai Ichi High Frequency Co Ltd Method and device for manufacturing bend pipe
JPS62244529A (en) * 1986-04-17 1987-10-24 Dai Ichi High Frequency Co Ltd Manufacture of metal bent pipe
US4803878A (en) * 1987-01-20 1989-02-14 The Cyril Bath Company Method and apparatus for forming elongate tubular members into a predetermined shape while extrusion is gas pressurized and product
JPH02117722A (en) * 1988-10-25 1990-05-02 Agency Of Ind Science & Technol Bulging method for tube stock by use of buckling
US5239852A (en) * 1989-08-24 1993-08-31 Armco Steel Company, L.P. Apparatus and method for forming a tubular frame member
US5353618A (en) * 1989-08-24 1994-10-11 Armco Steel Company, L.P. Apparatus and method for forming a tubular frame member
US5396786A (en) * 1993-03-15 1995-03-14 Mueller Industries, Inc. Machine and method for manufacturing crossover fittings
US5481892A (en) * 1989-08-24 1996-01-09 Roper; Ralph E. Apparatus and method for forming a tubular member
US5715718A (en) * 1996-02-27 1998-02-10 Benteler Automotive Corporation Hydroforming offset tube
US5890387A (en) * 1989-08-24 1999-04-06 Aquaform Inc. Apparatus and method for forming and hydropiercing a tubular frame member
US6105409A (en) * 1997-08-06 2000-08-22 Sumitomo Metal Industries, Ltd. Method and apparatus for hydroforming metallic tube
US6237382B1 (en) * 1997-08-06 2001-05-29 Sumitomo Metal Industries, Ltd. Method and apparatus for hydroforming metallic tube
JP2010051971A (en) * 2008-08-26 2010-03-11 Nisshin Steel Co Ltd Method of bending steel pipe
CN102327946A (en) * 2010-06-15 2012-01-25 比尔克特韦尔克有限公司 Method for manufacturing valve housing
CN103753118A (en) * 2013-12-09 2014-04-30 北京航星机器制造有限公司 Bending method of large-diameter thin-wall aluminum pipe and die
CN108356128A (en) * 2016-12-20 2018-08-03 田大志 High-pressure forming method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53113257A (en) * 1977-03-15 1978-10-03 Tokyu Car Corp Bending form device for hollow material of bent pipe and like

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53113257A (en) * 1977-03-15 1978-10-03 Tokyu Car Corp Bending form device for hollow material of bent pipe and like

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62118919A (en) * 1985-11-19 1987-05-30 Dai Ichi High Frequency Co Ltd Method and device for manufacturing bend pipe
JPS62244529A (en) * 1986-04-17 1987-10-24 Dai Ichi High Frequency Co Ltd Manufacture of metal bent pipe
US4803878A (en) * 1987-01-20 1989-02-14 The Cyril Bath Company Method and apparatus for forming elongate tubular members into a predetermined shape while extrusion is gas pressurized and product
JPH0566211B2 (en) * 1988-10-25 1993-09-21 Kogyo Gijutsuin
JPH02117722A (en) * 1988-10-25 1990-05-02 Agency Of Ind Science & Technol Bulging method for tube stock by use of buckling
US5481892A (en) * 1989-08-24 1996-01-09 Roper; Ralph E. Apparatus and method for forming a tubular member
US5353618A (en) * 1989-08-24 1994-10-11 Armco Steel Company, L.P. Apparatus and method for forming a tubular frame member
US5239852A (en) * 1989-08-24 1993-08-31 Armco Steel Company, L.P. Apparatus and method for forming a tubular frame member
US5890387A (en) * 1989-08-24 1999-04-06 Aquaform Inc. Apparatus and method for forming and hydropiercing a tubular frame member
US5396786A (en) * 1993-03-15 1995-03-14 Mueller Industries, Inc. Machine and method for manufacturing crossover fittings
US5715718A (en) * 1996-02-27 1998-02-10 Benteler Automotive Corporation Hydroforming offset tube
US6237382B1 (en) * 1997-08-06 2001-05-29 Sumitomo Metal Industries, Ltd. Method and apparatus for hydroforming metallic tube
US6105409A (en) * 1997-08-06 2000-08-22 Sumitomo Metal Industries, Ltd. Method and apparatus for hydroforming metallic tube
JP2010051971A (en) * 2008-08-26 2010-03-11 Nisshin Steel Co Ltd Method of bending steel pipe
CN102327946A (en) * 2010-06-15 2012-01-25 比尔克特韦尔克有限公司 Method for manufacturing valve housing
CN103753118A (en) * 2013-12-09 2014-04-30 北京航星机器制造有限公司 Bending method of large-diameter thin-wall aluminum pipe and die
CN108356128A (en) * 2016-12-20 2018-08-03 田大志 High-pressure forming method
CN108405698A (en) * 2016-12-20 2018-08-17 田大志 A kind of high-pressure forming method
CN108405698B (en) * 2016-12-20 2019-11-19 合肥海诺恒信息科技有限公司 A kind of high-pressure forming method

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