JPS6421012A - Production of shaft-shaped parts induction-hardened after cold forging - Google Patents

Production of shaft-shaped parts induction-hardened after cold forging

Info

Publication number
JPS6421012A
JPS6421012A JP62179707A JP17970787A JPS6421012A JP S6421012 A JPS6421012 A JP S6421012A JP 62179707 A JP62179707 A JP 62179707A JP 17970787 A JP17970787 A JP 17970787A JP S6421012 A JPS6421012 A JP S6421012A
Authority
JP
Japan
Prior art keywords
steel
rolled
shaft
shaped parts
hardened
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
JP62179707A
Other languages
Japanese (ja)
Other versions
JPH0745695B2 (en
Inventor
Morifumi Nakamura
Toshio Kawasaki
Yoshiyuki Nakatani
Toyofumi Hasegawa
Hakobu Yadohisa
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP62179707A priority Critical patent/JPH0745695B2/en
Publication of JPS6421012A publication Critical patent/JPS6421012A/en
Publication of JPH0745695B2 publication Critical patent/JPH0745695B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To produce shaft-shaped parts having necessary strength while omitting heat treatment twice, by rolling a steel contg. a regulated total amt. of O and Al2O3, specified amts. of B and Ti, cold forging the rolled steel as rolled and carrying out hardening by high frequency heating under specified conditions. CONSTITUTION:A steel consisting of, by weight, 0.23-0.35% C, 0.30-0.90% Mn, <=0.15% Si, 0.20-0.50% Cr, <=0.015% S, 0.0004-0.0030% B, 0.01-0.03% Ti, <=0.0015% O, <=0.0010% Al2O3 and the balance Fe and satisfying an inequality 0.40<=C+(Si+Cr)/5+Mn/6<=0.60 is rolled and cold forged as rolled. After the steel is mechanically worked into shaft-shaped parts, the parts are hardened by high frequency heating at a temp. between the Ar1 transformation point and 1,100 deg.C for 2-15sec. Thus, the total amt. of oxide type inclusions is regulated, induction hardenability is ensured by the addition of B, and nitrogen in the steel is fixed by Ti, so strength necessary for the parts can be ensured.
JP62179707A 1987-07-17 1987-07-17 Method for manufacturing shaft-shaped component that is induction hardened after cold forging Expired - Fee Related JPH0745695B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179707A JPH0745695B2 (en) 1987-07-17 1987-07-17 Method for manufacturing shaft-shaped component that is induction hardened after cold forging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179707A JPH0745695B2 (en) 1987-07-17 1987-07-17 Method for manufacturing shaft-shaped component that is induction hardened after cold forging

Publications (2)

Publication Number Publication Date
JPS6421012A true JPS6421012A (en) 1989-01-24
JPH0745695B2 JPH0745695B2 (en) 1995-05-17

Family

ID=16070470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179707A Expired - Fee Related JPH0745695B2 (en) 1987-07-17 1987-07-17 Method for manufacturing shaft-shaped component that is induction hardened after cold forging

Country Status (1)

Country Link
JP (1) JPH0745695B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102965479A (en) * 2012-12-10 2013-03-13 南京理工大学 Method for quickly preparing high-corrosion-resistance austenitic stainless steel surface layer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719366A (en) * 1980-07-09 1982-02-01 Kobe Steel Ltd Machine structural steel with superior cold forgeability and machinability
JPS60230960A (en) * 1984-04-27 1985-11-16 Daido Steel Co Ltd Steel for cold forging
JPS61291955A (en) * 1985-11-06 1986-12-22 Daido Steel Co Ltd Free-cutting steel excellent in rolling fatigue strength

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719366A (en) * 1980-07-09 1982-02-01 Kobe Steel Ltd Machine structural steel with superior cold forgeability and machinability
JPS60230960A (en) * 1984-04-27 1985-11-16 Daido Steel Co Ltd Steel for cold forging
JPS61291955A (en) * 1985-11-06 1986-12-22 Daido Steel Co Ltd Free-cutting steel excellent in rolling fatigue strength

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102965479A (en) * 2012-12-10 2013-03-13 南京理工大学 Method for quickly preparing high-corrosion-resistance austenitic stainless steel surface layer
CN102965479B (en) * 2012-12-10 2014-09-17 南京理工大学 Method for quickly preparing high-corrosion-resistance austenitic stainless steel surface layer

Also Published As

Publication number Publication date
JPH0745695B2 (en) 1995-05-17

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees