JPS5671543A - Finishing method of semiprocessed forged product - Google Patents

Finishing method of semiprocessed forged product

Info

Publication number
JPS5671543A
JPS5671543A JP14836079A JP14836079A JPS5671543A JP S5671543 A JPS5671543 A JP S5671543A JP 14836079 A JP14836079 A JP 14836079A JP 14836079 A JP14836079 A JP 14836079A JP S5671543 A JPS5671543 A JP S5671543A
Authority
JP
Japan
Prior art keywords
dent
semiprocessed
forged product
punch
group
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
JP14836079A
Other languages
Japanese (ja)
Other versions
JPS5854895B2 (en
Inventor
Yoshihito Sakai
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP14836079A priority Critical patent/JPS5854895B2/en
Publication of JPS5671543A publication Critical patent/JPS5671543A/en
Publication of JPS5854895B2 publication Critical patent/JPS5854895B2/en
Expired 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
    • 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
    • B21J5/008—Incremental forging

Abstract

PURPOSE: To finish the surface of a semiprocessed forged product easily and smoothly by thrusting a part a punches against the semiprocessed forged product and moving the punches and the semiprocessed forged product relatively.
CONSTITUTION: Dents 5, 6 are repeatedly worked on a work piece B with a group of punches which consists of a hexagonal main punch 2 and subpunches 3 of the same shape arranged around it, and dents 6, 9 are formed on the upper surface and bottom surface of the work piece B. To remove burrs 7 and projections 10, 11, the punch group 1 is lowered so that the lower end comes in the dent 8. Then, the punch group 1 is moved and the lower end of the punch group 3 is pushed against the peripheral face of the dent 8. The die is rotated in the direction of the arrow, then a spring 7 is removed and the projection 10 is crushed to smooth the dent 8. Next, the punch group 1 is moved above the dent 9, and only those which can enter are lowered and their lower ends are pushed against the peripheral face of the dent 9 and the die is rotated to make the dent 9 smooth. Relative movement of the die and punch group will do as well.
COPYRIGHT: (C)1981,JPO&Japio
JP14836079A 1979-11-15 1979-11-15 Finishing method of forged semi-finished products in sequential die forging method Expired JPS5854895B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14836079A JPS5854895B2 (en) 1979-11-15 1979-11-15 Finishing method of forged semi-finished products in sequential die forging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14836079A JPS5854895B2 (en) 1979-11-15 1979-11-15 Finishing method of forged semi-finished products in sequential die forging method

Publications (2)

Publication Number Publication Date
JPS5671543A true JPS5671543A (en) 1981-06-15
JPS5854895B2 JPS5854895B2 (en) 1983-12-07

Family

ID=15451010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14836079A Expired JPS5854895B2 (en) 1979-11-15 1979-11-15 Finishing method of forged semi-finished products in sequential die forging method

Country Status (1)

Country Link
JP (1) JPS5854895B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8360210B2 (en) 2007-08-31 2013-01-29 Mitsubishi Electric Corporation Oil buffer for an elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8360210B2 (en) 2007-08-31 2013-01-29 Mitsubishi Electric Corporation Oil buffer for an elevator

Also Published As

Publication number Publication date
JPS5854895B2 (en) 1983-12-07

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