JPS6455327A - Marking method - Google Patents

Marking method

Info

Publication number
JPS6455327A
JPS6455327A JP62210685A JP21068587A JPS6455327A JP S6455327 A JPS6455327 A JP S6455327A JP 62210685 A JP62210685 A JP 62210685A JP 21068587 A JP21068587 A JP 21068587A JP S6455327 A JPS6455327 A JP S6455327A
Authority
JP
Japan
Prior art keywords
marked
marking
cooling
heating
magnetic field
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
JP62210685A
Other languages
Japanese (ja)
Inventor
Masaharu Moriyasu
Kohei Murakami
Megumi Omine
Hideo Ikeda
Yoshihiro Sugiyama
Shunji Omura
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 Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62210685A priority Critical patent/JPS6455327A/en
Publication of JPS6455327A publication Critical patent/JPS6455327A/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
    • C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields

Abstract

PURPOSE:To obtain a marking with to ruggedness on the surface of a marking part by performing irradiation in a magnetic field and heating or cooling a member to be treated without melting and evaporating at the time of marking by projecting a high energy beam. CONSTITUTION:To take an example, a laser beam 1 taken out of a CO2 laser oscillator 10 is scanned by an X-axis and y-axis galvano-scanner 3 in an arbitrary pattern. After this beam is bent once by a reflect mirror 5 through a condensing lens 4, it is condensed on the surface of a member 6 to be marked so that the beam obtains a suitable density of power. At this time, when the density of power is adjusted to be about 10<4>W/cm<2>, the surface of the member 6 can be heated so that it is not melted or evaporated. When the member is of steel material, a magnetic grating 30 is formed in a beam irradiating part by heating or cooling in a magnetic field due to an electric magnet 20, and accordingly, characters and signals can be marked and the marked surface is even.
JP62210685A 1987-08-25 1987-08-25 Marking method Pending JPS6455327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62210685A JPS6455327A (en) 1987-08-25 1987-08-25 Marking method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62210685A JPS6455327A (en) 1987-08-25 1987-08-25 Marking method

Publications (1)

Publication Number Publication Date
JPS6455327A true JPS6455327A (en) 1989-03-02

Family

ID=16593410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62210685A Pending JPS6455327A (en) 1987-08-25 1987-08-25 Marking method

Country Status (1)

Country Link
JP (1) JPS6455327A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7148447B2 (en) 2001-03-29 2006-12-12 Gsi Group Corporation Method and apparatus for laser marking by ablation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7148447B2 (en) 2001-03-29 2006-12-12 Gsi Group Corporation Method and apparatus for laser marking by ablation

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