JPS57130724A - Manufacture of flanged joint - Google Patents

Manufacture of flanged joint

Info

Publication number
JPS57130724A
JPS57130724A JP1524881A JP1524881A JPS57130724A JP S57130724 A JPS57130724 A JP S57130724A JP 1524881 A JP1524881 A JP 1524881A JP 1524881 A JP1524881 A JP 1524881A JP S57130724 A JPS57130724 A JP S57130724A
Authority
JP
Japan
Prior art keywords
diameter
tube
small
punch
flange
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
JP1524881A
Other languages
Japanese (ja)
Inventor
Tadao Ebukuro
Masayasu Kojima
Masatake Yamazaki
Original Assignee
Sumikin Kiko Kk
Sumitomo Metal Ind 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 Sumikin Kiko Kk, Sumitomo Metal Ind Ltd filed Critical Sumikin Kiko Kk
Priority to JP1524881A priority Critical patent/JPS57130724A/en
Publication of JPS57130724A publication Critical patent/JPS57130724A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • B21D19/08Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws

Abstract

PURPOSE:To manufacture a flanged joint having sufficient thickness, large diameter and good shape by forming a small diameter extension part by hot-extruding the inside of a thick metallic tube and forming the flange by the remaining large-diameter outside part. CONSTITUTION:A thick metallic tube having an inner diameter (do') nearly equal to that of the straight part of the tube product and a outer diameter (Do') greater than that of the straight part of the tube product is set on a die 19 as a blank tube 18 to be worked, and held by a container 20 splitted into left and right parts. The inside of the tube 18 is hot-extruded by an inner punch 21, and a small-diameter extension 27 which is nearly equal to the size of the straight part of the tube product is formed on the extrusion side by the small-diameter part 24 of the punch. Next, after moving the container 20 backward to the left and right, an outer punch 22 is lowered, and the large-diameter outside 29 of the stepped tube 28 obtained is upsetted to form a flange of to thickness. Since the joint 26 of the small diameter part 24 is made right angles, the boundary corner between the flange face and the inner face of the srraight part is finished to right angles without roundness.
JP1524881A 1981-02-03 1981-02-03 Manufacture of flanged joint Pending JPS57130724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1524881A JPS57130724A (en) 1981-02-03 1981-02-03 Manufacture of flanged joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1524881A JPS57130724A (en) 1981-02-03 1981-02-03 Manufacture of flanged joint

Publications (1)

Publication Number Publication Date
JPS57130724A true JPS57130724A (en) 1982-08-13

Family

ID=11883546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1524881A Pending JPS57130724A (en) 1981-02-03 1981-02-03 Manufacture of flanged joint

Country Status (1)

Country Link
JP (1) JPS57130724A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008000817A (en) * 2006-05-25 2008-01-10 Arai Kogyo Kk Method for fixing metal members and axis member having flange
CN103191945A (en) * 2012-01-10 2013-07-10 江苏舒恒管夹制造有限公司 Method and device for high-pressure hydraulic flange plasticity forming
CN104056958A (en) * 2014-05-30 2014-09-24 宁波新冠联机电有限公司 Pressing forming die of overboard mask

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008000817A (en) * 2006-05-25 2008-01-10 Arai Kogyo Kk Method for fixing metal members and axis member having flange
CN103191945A (en) * 2012-01-10 2013-07-10 江苏舒恒管夹制造有限公司 Method and device for high-pressure hydraulic flange plasticity forming
CN104056958A (en) * 2014-05-30 2014-09-24 宁波新冠联机电有限公司 Pressing forming die of overboard mask

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