JPS5792105A - Method for improving dimensional accuracy of sintered forgings - Google Patents

Method for improving dimensional accuracy of sintered forgings

Info

Publication number
JPS5792105A
JPS5792105A JP16769980A JP16769980A JPS5792105A JP S5792105 A JPS5792105 A JP S5792105A JP 16769980 A JP16769980 A JP 16769980A JP 16769980 A JP16769980 A JP 16769980A JP S5792105 A JPS5792105 A JP S5792105A
Authority
JP
Japan
Prior art keywords
forgings
sintered
forging
dimensional accuracy
hot
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
JP16769980A
Other languages
Japanese (ja)
Inventor
Hideo Hanzawa
Ichiro Nagarei
Tatsuro Iwama
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Toyota Jidosha Kogyo KK
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 Toyota Motor Corp, Toyota Jidosha Kogyo KK filed Critical Toyota Motor Corp
Priority to JP16769980A priority Critical patent/JPS5792105A/en
Publication of JPS5792105A publication Critical patent/JPS5792105A/en
Pending legal-status Critical Current

Links

Landscapes

  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To lower the costs of machining and to improve the dimensional accuracy of sintered forgings by subjecting a powder molding to hot coining right after hot sintering and forging then to air cooling.
CONSTITUTION: A powder molding is heated and is forged to a prescribed shape by using a forging press. Thence, the forging is hot-coined by using a press machine or the like having coining dies in the state of small deformaton resistance right after forging, and it is air-cooled. It is then finished to a specified size by finish grinding. According to this method, the dimensional accuracy of the sintered forgings such as connecting rod is improved.
COPYRIGHT: (C)1982,JPO&Japio
JP16769980A 1980-11-28 1980-11-28 Method for improving dimensional accuracy of sintered forgings Pending JPS5792105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16769980A JPS5792105A (en) 1980-11-28 1980-11-28 Method for improving dimensional accuracy of sintered forgings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16769980A JPS5792105A (en) 1980-11-28 1980-11-28 Method for improving dimensional accuracy of sintered forgings

Publications (1)

Publication Number Publication Date
JPS5792105A true JPS5792105A (en) 1982-06-08

Family

ID=15854575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16769980A Pending JPS5792105A (en) 1980-11-28 1980-11-28 Method for improving dimensional accuracy of sintered forgings

Country Status (1)

Country Link
JP (1) JPS5792105A (en)

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