JPS5645209A - Method and apparatus for extrusion work - Google Patents

Method and apparatus for extrusion work

Info

Publication number
JPS5645209A
JPS5645209A JP12002079A JP12002079A JPS5645209A JP S5645209 A JPS5645209 A JP S5645209A JP 12002079 A JP12002079 A JP 12002079A JP 12002079 A JP12002079 A JP 12002079A JP S5645209 A JPS5645209 A JP S5645209A
Authority
JP
Japan
Prior art keywords
blank
die
center hole
mandrel
work
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
JP12002079A
Other languages
Japanese (ja)
Other versions
JPS622890B2 (en
Inventor
Hidehiko Tsukamoto
Ryoji Taura
Tetsuo Ichikizaki
Terushige Nakamura
Junichi Iifushi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP12002079A priority Critical patent/JPS5645209A/en
Publication of JPS5645209A publication Critical patent/JPS5645209A/en
Publication of JPS622890B2 publication Critical patent/JPS622890B2/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
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/10—Piercing billets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)

Abstract

PURPOSE: To make the simple process possible to accurately perform the external forming work and the boring work for the bearing hole for the hollow parts like as the gear, etc., by arranging the mandrel provided with the sharp tip in the die, and by pushing the holeless blank against the blank provided with the center hole at the front surface.
CONSTITUTION: The mandrel 6 provided with the sharp tip is located in the die 2 prossessing the forming-edge 1 at its inner wall. The back of the blank solid previously provided with the center hole at its end face is pushed by the front face of another blank unprovided with the center hole, into the die 2; hereby, the foregoing blank is subjected to the external forming work and the central shaft hole boring work at the same time, and also, the center hole is bored in the front face of the following blank. Next, this latter blank is pushed into the die 2 through the new blank, and then, the mandrel 6 is retreated, and the worked former blank is knocked out as the product, which is then pushed out of the die 2 by the jig 11. After that, the mandral 6 is elevated to the initial position in order to give the forming work to the succeeding blanks.
COPYRIGHT: (C)1981,JPO&Japio
JP12002079A 1979-09-20 1979-09-20 Method and apparatus for extrusion work Granted JPS5645209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12002079A JPS5645209A (en) 1979-09-20 1979-09-20 Method and apparatus for extrusion work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12002079A JPS5645209A (en) 1979-09-20 1979-09-20 Method and apparatus for extrusion work

Publications (2)

Publication Number Publication Date
JPS5645209A true JPS5645209A (en) 1981-04-24
JPS622890B2 JPS622890B2 (en) 1987-01-22

Family

ID=14775914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12002079A Granted JPS5645209A (en) 1979-09-20 1979-09-20 Method and apparatus for extrusion work

Country Status (1)

Country Link
JP (1) JPS5645209A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157521A (en) * 1982-03-16 1983-09-19 Nissan Motor Co Ltd Method and apparatus for manufacturing gear
JPS58167020A (en) * 1982-03-26 1983-10-03 Nissan Motor Co Ltd Method and apparatus for manufacturing gear
JPS6061131A (en) * 1983-09-13 1985-04-08 Hitachi Ltd Plastic working method of metallic product
US4509353A (en) * 1982-03-23 1985-04-09 Nissan Motor Company, Limited Method of and apparatus for forming gears
US10537924B2 (en) * 2013-10-16 2020-01-21 Ulrich Bruhnke Extrusion press for producing flat sheets

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157521A (en) * 1982-03-16 1983-09-19 Nissan Motor Co Ltd Method and apparatus for manufacturing gear
US4509353A (en) * 1982-03-23 1985-04-09 Nissan Motor Company, Limited Method of and apparatus for forming gears
JPS58167020A (en) * 1982-03-26 1983-10-03 Nissan Motor Co Ltd Method and apparatus for manufacturing gear
JPH0331537B2 (en) * 1982-03-26 1991-05-07 Nissan Motor
JPS6061131A (en) * 1983-09-13 1985-04-08 Hitachi Ltd Plastic working method of metallic product
JPH0215298B2 (en) * 1983-09-13 1990-04-11 Hitachi Seisakusho Kk
US10537924B2 (en) * 2013-10-16 2020-01-21 Ulrich Bruhnke Extrusion press for producing flat sheets

Also Published As

Publication number Publication date
JPS622890B2 (en) 1987-01-22

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