JPS5478311A - Hardening method with laser beam - Google Patents

Hardening method with laser beam

Info

Publication number
JPS5478311A
JPS5478311A JP14571877A JP14571877A JPS5478311A JP S5478311 A JPS5478311 A JP S5478311A JP 14571877 A JP14571877 A JP 14571877A JP 14571877 A JP14571877 A JP 14571877A JP S5478311 A JPS5478311 A JP S5478311A
Authority
JP
Japan
Prior art keywords
beams
laser beams
power density
laser
radiated
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
JP14571877A
Other languages
Japanese (ja)
Inventor
Takashi Takaoka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14571877A priority Critical patent/JPS5478311A/en
Publication of JPS5478311A publication Critical patent/JPS5478311A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation

Abstract

PURPOSE:To form a desired hardness distribution on the surface of a steel material by selectively varying the scanning speed and power density of laser beams when the material is hardened with the beams. CONSTITUTION:The course of laser beams 2 radiated from laser oscillator 1 is changed by 90 deg. in a different direction with first reflex mirror 3 and second reflex mirror 4. Laser beams 2'' are then condensed by condenser lens 5 and radiated to the surface of steel material W to be treated. At this time, mirror 4 and condenser 5 are held in one united body so that the surface of material W is scanned by moving material W back and forth, and forward at a predetermined speed. A desired hardness distribution is formed on the surface of material W by regulating the radiation of laser beams according to the necessary hardness. In order to regulate the radiation, the power density and/or the scanning speed of laser beams are varied, and the power density variation is regulated by varying the output of beams from oscillator 1 and the focusing positionof beams due to condenser lens 5.
JP14571877A 1977-12-06 1977-12-06 Hardening method with laser beam Pending JPS5478311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14571877A JPS5478311A (en) 1977-12-06 1977-12-06 Hardening method with laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14571877A JPS5478311A (en) 1977-12-06 1977-12-06 Hardening method with laser beam

Publications (1)

Publication Number Publication Date
JPS5478311A true JPS5478311A (en) 1979-06-22

Family

ID=15391512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14571877A Pending JPS5478311A (en) 1977-12-06 1977-12-06 Hardening method with laser beam

Country Status (1)

Country Link
JP (1) JPS5478311A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6059899A (en) * 1996-06-28 2000-05-09 Toyota Jidosha Kabushiki Kaisha Press-formed article and method for strengthening the same
DE19942386B4 (en) * 1999-09-04 2013-10-02 Pro-Beam Systems Gmbh Process for the surface treatment of surfaces by means of an energy beam

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132408A (en) * 1974-07-12 1976-03-19 Caterpillar Tractor Co Kakohenno tainainaisokuokanetsushorisuruhohooyobi sochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132408A (en) * 1974-07-12 1976-03-19 Caterpillar Tractor Co Kakohenno tainainaisokuokanetsushorisuruhohooyobi sochi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6059899A (en) * 1996-06-28 2000-05-09 Toyota Jidosha Kabushiki Kaisha Press-formed article and method for strengthening the same
DE19942386B4 (en) * 1999-09-04 2013-10-02 Pro-Beam Systems Gmbh Process for the surface treatment of surfaces by means of an energy beam

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