JPS5677024A - Formation of bellows - Google Patents

Formation of bellows

Info

Publication number
JPS5677024A
JPS5677024A JP15429279A JP15429279A JPS5677024A JP S5677024 A JPS5677024 A JP S5677024A JP 15429279 A JP15429279 A JP 15429279A JP 15429279 A JP15429279 A JP 15429279A JP S5677024 A JPS5677024 A JP S5677024A
Authority
JP
Japan
Prior art keywords
blank material
bellows
pressure chamber
die
forming
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
JP15429279A
Other languages
Japanese (ja)
Inventor
Katsusaburo Nakayama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15429279A priority Critical patent/JPS5677024A/en
Publication of JPS5677024A publication Critical patent/JPS5677024A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve working efficiency by forming the circular cylindrical pressure chamber to be inserted into the bore of a cylindrical blank material to a broad strip shape and pressing the blank material to restrain the same in the straight part of a die and pulling the blank material from one direction thereby forming bellows.
CONSTITUTION: In a method of forming bellows by exerting pressure from the inner side to part of a cylindrical blank material and projecting the same to the outer side, the pressure chamber 9 of a circular cylinder 2 to be inserted into a blank material 1 is formed to a broad striplike recess. O-rings 4 and backup rings 5 are symmetrically disposed to the top and bottom of the pressure chamber 9. At this time, the upper O-ring 4 is in the position of 1/2 pitch the 1st bellows and the lower O-ring 4 is in the position of the straight part of the die 6. Next, when the pressure liquid is force fed from the hole 8 of the circular cylinder 2 into the pressure chamber 9, the blank material 1 is restrained in the straight line part of the die 6 and the blank material is pulled from one direction, whereby the bellows is formed. From this point on, the cylinder 2 is successively moved until required number of bellows are formed.
COPYRIGHT: (C)1981,JPO&Japio
JP15429279A 1979-11-30 1979-11-30 Formation of bellows Pending JPS5677024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15429279A JPS5677024A (en) 1979-11-30 1979-11-30 Formation of bellows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15429279A JPS5677024A (en) 1979-11-30 1979-11-30 Formation of bellows

Publications (1)

Publication Number Publication Date
JPS5677024A true JPS5677024A (en) 1981-06-25

Family

ID=15580945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15429279A Pending JPS5677024A (en) 1979-11-30 1979-11-30 Formation of bellows

Country Status (1)

Country Link
JP (1) JPS5677024A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03248721A (en) * 1990-02-26 1991-11-06 Showa Rasenkan Seisakusho:Kk Manufacture of stainless steel tube provided with bellows part and stainless steel tube for piping
JP2009214156A (en) * 2008-03-12 2009-09-24 Honda Motor Co Ltd Bulging method and bulging device
JP2009214154A (en) * 2008-03-12 2009-09-24 Honda Motor Co Ltd Bulging method and bulging device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03248721A (en) * 1990-02-26 1991-11-06 Showa Rasenkan Seisakusho:Kk Manufacture of stainless steel tube provided with bellows part and stainless steel tube for piping
JP2009214156A (en) * 2008-03-12 2009-09-24 Honda Motor Co Ltd Bulging method and bulging device
JP2009214154A (en) * 2008-03-12 2009-09-24 Honda Motor Co Ltd Bulging method and bulging device

Similar Documents

Publication Publication Date Title
JPS5677024A (en) Formation of bellows
JPS5650743A (en) Method and device of forming shaft with center hole
JPS56139247A (en) Production of mouthpiece fitting of hose for pressure fluid or the like
JPS54103771A (en) Close type ultrahigh pressure forging press
JPS5554227A (en) Working apparatus for branch pipe
JPS53142769A (en) Inserting device of bar-like portion material
JPS5611130A (en) Manufacture of nozzle
JPS56102323A (en) Formation of end plate
JPS54104092A (en) Improvement of punching accuracy
JPS52140779A (en) Methods of discriminating quality of the equipment in hydraulic device
JPS5251108A (en) Pipe and its manufacturing method
JPS5680329A (en) Hydraulic forging device
JPS5717340A (en) Method for working of screwless coupling
JPS5325054A (en) Special form drain water pipe
JPS56163050A (en) Pressing method of shaft having undercut
JPS5575822A (en) Hydraulic bulging method for metallic container
JPS5326617A (en) Deflection uni t and its manufacture
JPS5244556A (en) Manufacturing process of magnetron anode
JPS5439154A (en) Production of size inspecting jig for sheet metal products
JPS5555819A (en) Hydraulic forming die for thin shape bent pipe and forming method
JPS5326030A (en) Deflection lock means
JPS5360778A (en) Method of blanking thick material
JPS5341879A (en) Method of preventing scum from rising in press work
JPS564322A (en) Working method for very small hole
JPS534106A (en) Nozzle engineering work method for turbine