JPS5623338A - Formation of female screw - Google Patents

Formation of female screw

Info

Publication number
JPS5623338A
JPS5623338A JP9812179A JP9812179A JPS5623338A JP S5623338 A JPS5623338 A JP S5623338A JP 9812179 A JP9812179 A JP 9812179A JP 9812179 A JP9812179 A JP 9812179A JP S5623338 A JPS5623338 A JP S5623338A
Authority
JP
Japan
Prior art keywords
cylindrical body
male screw
female screw
die
screw bar
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
JP9812179A
Other languages
Japanese (ja)
Inventor
Seiji Hattori
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP9812179A priority Critical patent/JPS5623338A/en
Publication of JPS5623338A publication Critical patent/JPS5623338A/en
Pending legal-status Critical Current

Links

Landscapes

  • Forging (AREA)

Abstract

PURPOSE: To form a female screw superior in accuracy and strength by penetrating to a male screw of a male screw bar, after inserting a male screw bar which is a pattern of a female screw into a cylindrical body, and making plastic deformation of a cylindrical body moving a die from one end of a cylindrical body along its outer circumference in the axis direction.
CONSTITUTION: The male screw bar 4 which is a pattern of a female screw is inserted into the cylindrical body 3 having a bit bigger inner diameter than the bottom diameter of thread of female screw to be formed. By moving the die 5 from one end of the cylindrical body along its outer circumference in the axis direction, the cylindrical body is ironed by the working surface of die making plastic deformation, and a female screw is formed penetrating to the male screw 4a of male screw bar. Then, the die is pulled out, and the cylindrical body is set between the hydraulic cylinders 7. By supplying super high pressure oil, the cylindrical body is expanded receiving a pressing load from the piston rod 10. As a result, clearance is caused between the cylindrical body and the male screw bar, and the male screw bar can be taken out easily.
COPYRIGHT: (C)1981,JPO&Japio
JP9812179A 1979-08-02 1979-08-02 Formation of female screw Pending JPS5623338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9812179A JPS5623338A (en) 1979-08-02 1979-08-02 Formation of female screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9812179A JPS5623338A (en) 1979-08-02 1979-08-02 Formation of female screw

Publications (1)

Publication Number Publication Date
JPS5623338A true JPS5623338A (en) 1981-03-05

Family

ID=14211453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9812179A Pending JPS5623338A (en) 1979-08-02 1979-08-02 Formation of female screw

Country Status (1)

Country Link
JP (1) JPS5623338A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008290146A (en) * 2007-05-24 2008-12-04 Toshiji Ito Female screw forming method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008290146A (en) * 2007-05-24 2008-12-04 Toshiji Ito Female screw forming method

Similar Documents

Publication Publication Date Title
GB1189271A (en) Hollow Bolt and Method of Making Same
JPS55144334A (en) Liquid pressure bulging method
JPS5577934A (en) Bending liquid pressure forming method for thin-walled tube
JPS5623338A (en) Formation of female screw
JPS5623324A (en) Preparation of roller
JPS56147624A (en) Improved ultrahigh pressure apparatus
JPS5597838A (en) Production of base metal fitting of hose for pressure fluid or the like
JPS5611119A (en) Manufacture of stepped hollow shaft
JPS56139247A (en) Production of mouthpiece fitting of hose for pressure fluid or the like
GB1337195A (en) Method of tube drawing and die arrangement for application of this method
JPS56136245A (en) Formation of frame pipe for bicycle
JPS5617127A (en) Manufacture of crank shaft of refrigerator
JPS579541A (en) Pipe expander
JPS561241A (en) Production of screw-connected pipe
JPS5594749A (en) Production of bolt for fastening of concrete mold and product thereof
CA1169273A (en) Cold forging mandrel with threads
JPS564325A (en) Production of roller
JPS5677024A (en) Formation of bellows
JPS5510387A (en) Inserter for cylindrical insert
JPS55142161A (en) Body manufacturing method of brake cylinder and clutch cylinder or the like
JPS646505A (en) Cushioning apparatus of pressurized fluid cylinder
RU1776477C (en) Method for producing hollow articles from sheet blanks
Sato Study on tube-expanding by drawing of phosphor-deoxidized copper tubes. III. Relations between tool shapes and changes in wall-thickness
SU1189562A1 (en) Method of producing articles with branches
JPS6422432A (en) Method and device for manufacturing tubular screw