JPS5645230A - Forming method for taper pipe provided with spiral groove at inner surface of pipe end - Google Patents

Forming method for taper pipe provided with spiral groove at inner surface of pipe end

Info

Publication number
JPS5645230A
JPS5645230A JP11875179A JP11875179A JPS5645230A JP S5645230 A JPS5645230 A JP S5645230A JP 11875179 A JP11875179 A JP 11875179A JP 11875179 A JP11875179 A JP 11875179A JP S5645230 A JPS5645230 A JP S5645230A
Authority
JP
Japan
Prior art keywords
spiral groove
pipe
work
forming method
taper
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
JP11875179A
Other languages
Japanese (ja)
Inventor
Kuniyoshi Nakamura
Kiyomi Maruyama
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP11875179A priority Critical patent/JPS5645230A/en
Publication of JPS5645230A publication Critical patent/JPS5645230A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simply form the taper pipe provided with high accurate spiral groove at inner surface, by applying the drawing work to the pipe blank after forming the spiral groove at inner surface of the pipe end.
CONSTITUTION: The spiral groove 2 in suitalbe pitch and length is formed at the inner surface of the end of the pipe blank 1 by the cutting work or the plastic work; after that, the end of the pipe blank 1 in the same length as that of the spiral groove 2 is subjected to the drawing work; hereby, the taper pipe 3, provided with the spiral groove 2' in about constant depth at the inner surface of the end of the pipe 1', is formed. Since this forming method jointly uses the cutting work or the plastic work and the drawing work, the spiral groove 2' is simply formed at the inner surface of the taper pipe 3 which hereby becomes suitable for the mass production.
COPYRIGHT: (C)1981,JPO&Japio
JP11875179A 1979-09-18 1979-09-18 Forming method for taper pipe provided with spiral groove at inner surface of pipe end Pending JPS5645230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11875179A JPS5645230A (en) 1979-09-18 1979-09-18 Forming method for taper pipe provided with spiral groove at inner surface of pipe end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11875179A JPS5645230A (en) 1979-09-18 1979-09-18 Forming method for taper pipe provided with spiral groove at inner surface of pipe end

Publications (1)

Publication Number Publication Date
JPS5645230A true JPS5645230A (en) 1981-04-24

Family

ID=14744146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11875179A Pending JPS5645230A (en) 1979-09-18 1979-09-18 Forming method for taper pipe provided with spiral groove at inner surface of pipe end

Country Status (1)

Country Link
JP (1) JPS5645230A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5439353A (en) * 1977-09-02 1979-03-26 Hitachi Cable Ltd Method of producting metal pipe with groove or projection on inner surface

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5439353A (en) * 1977-09-02 1979-03-26 Hitachi Cable Ltd Method of producting metal pipe with groove or projection on inner surface

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