JPS5764420A - Formation of pipe flange of thin-wall metallic pipe - Google Patents

Formation of pipe flange of thin-wall metallic pipe

Info

Publication number
JPS5764420A
JPS5764420A JP14138880A JP14138880A JPS5764420A JP S5764420 A JPS5764420 A JP S5764420A JP 14138880 A JP14138880 A JP 14138880A JP 14138880 A JP14138880 A JP 14138880A JP S5764420 A JPS5764420 A JP S5764420A
Authority
JP
Japan
Prior art keywords
pipe
thin
discs
rings
wall metallic
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.)
Granted
Application number
JP14138880A
Other languages
Japanese (ja)
Other versions
JPS6361095B2 (en
Inventor
Yoshihiko Takada
Mamoru Izumisawa
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.)
SHIRUBAA KOGYO KK
SILVER KOGYO KK
Silver Industries Inc
Original Assignee
SHIRUBAA KOGYO KK
SILVER KOGYO KK
Silver Industries Inc
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 SHIRUBAA KOGYO KK, SILVER KOGYO KK, Silver Industries Inc filed Critical SHIRUBAA KOGYO KK
Priority to JP14138880A priority Critical patent/JPS5764420A/en
Publication of JPS5764420A publication Critical patent/JPS5764420A/en
Publication of JPS6361095B2 publication Critical patent/JPS6361095B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K23/00—Making other articles
    • B21K23/04—Making other articles flanged articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/205—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with annular guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)

Abstract

PURPOSE: To easily form a pipe flange with an excellent roundness and without crack and creases, by bulging a pipe, outward along the entire pipe circumference, at the place a little distant from the end of a thin-wall metallic pipe, and compressing the pipe in its longitudinal direction.
CONSTITUTION: An elastic forming body 11 is inserted into a thin-wall metallic pipe 1 from either side of a pressing disc 12a or 12b., and is held by both the discs within the pipe 1. Next, after putting rings 14a, 14b into the outside of the pipe 1; the discs 12a, 12b are advanced, and the rings 14a, 14b are also advances simultaneously. The elastic forming body 11 in the pipe 1 is pressed to expand radially outward causeing the elastic deformation and a part 1c of the pipe 1 housing the elastic body 11 in its inside is bulged outward along its entire circumference. The pressing discs 12a, 12b are retreated, then the body 11 returns to its original form; After extracting the body 11 to the outside of the pipe 1 only the rings 14a, 14bare advanced oppoingly to each other, the large-sized bulged part 1c' is compressed in the longitudinal direction of the pipe 1 and is formed into a pipe flange 2 of double construction.
COPYRIGHT: (C)1982,JPO&Japio
JP14138880A 1980-10-08 1980-10-08 Formation of pipe flange of thin-wall metallic pipe Granted JPS5764420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14138880A JPS5764420A (en) 1980-10-08 1980-10-08 Formation of pipe flange of thin-wall metallic pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14138880A JPS5764420A (en) 1980-10-08 1980-10-08 Formation of pipe flange of thin-wall metallic pipe

Publications (2)

Publication Number Publication Date
JPS5764420A true JPS5764420A (en) 1982-04-19
JPS6361095B2 JPS6361095B2 (en) 1988-11-28

Family

ID=15290828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14138880A Granted JPS5764420A (en) 1980-10-08 1980-10-08 Formation of pipe flange of thin-wall metallic pipe

Country Status (1)

Country Link
JP (1) JPS5764420A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02211913A (en) * 1989-02-14 1990-08-23 Usui Internatl Ind Co Ltd Manufacture of bellows tube with small diameter and device therefor
JPH03128127A (en) * 1989-10-13 1991-05-31 Usui Internatl Ind Co Ltd Manufacturing device for bellows pipe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0630894U (en) * 1992-09-14 1994-04-22 徹三 内倉 Wallet separation warning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02211913A (en) * 1989-02-14 1990-08-23 Usui Internatl Ind Co Ltd Manufacture of bellows tube with small diameter and device therefor
JPH03128127A (en) * 1989-10-13 1991-05-31 Usui Internatl Ind Co Ltd Manufacturing device for bellows pipe

Also Published As

Publication number Publication date
JPS6361095B2 (en) 1988-11-28

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