JPS5550209A - Forming method of laser beam for heat treatment - Google Patents

Forming method of laser beam for heat treatment

Info

Publication number
JPS5550209A
JPS5550209A JP12377678A JP12377678A JPS5550209A JP S5550209 A JPS5550209 A JP S5550209A JP 12377678 A JP12377678 A JP 12377678A JP 12377678 A JP12377678 A JP 12377678A JP S5550209 A JPS5550209 A JP S5550209A
Authority
JP
Japan
Prior art keywords
beams
laser beam
intensity
crest
focuses
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
JP12377678A
Other languages
Japanese (ja)
Inventor
Koichi Goto
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP12377678A priority Critical patent/JPS5550209A/en
Publication of JPS5550209A publication Critical patent/JPS5550209A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B23K26/0608—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams in the same heat affected zone [HAZ]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Lasers (AREA)
  • Lenses (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To make the intensity of beams at the crossing part nearly even by splitting the laser beam of crest-form mode to two beams with its central axis as a boundary and converging the respective beams and superposing respectively separately. CONSTITUTION:The laser beam L of crest-form mode with its central axis being aligned to the center O of the optical system is radiated to a reflecting mirror 1 and the respectively bisected reflected beams La, Lb are obtainable by the reflecting faces 1a, 1b. These beams La, Lb are reflected by concave mirrors 2, 3 respectively and are converged to focuses Fa, Fb. At this time, the respective beams La, Lb are so crossed that their high intensity portions distribute to both sides in the specified position Q just before the focuses and therefore the sectional intensity distributions of light in the position of a face 9 form the beams of top hat mode, whereby the nearly even intensity distribution is obtained.
JP12377678A 1978-10-06 1978-10-06 Forming method of laser beam for heat treatment Pending JPS5550209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12377678A JPS5550209A (en) 1978-10-06 1978-10-06 Forming method of laser beam for heat treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12377678A JPS5550209A (en) 1978-10-06 1978-10-06 Forming method of laser beam for heat treatment

Publications (1)

Publication Number Publication Date
JPS5550209A true JPS5550209A (en) 1980-04-11

Family

ID=14868990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12377678A Pending JPS5550209A (en) 1978-10-06 1978-10-06 Forming method of laser beam for heat treatment

Country Status (1)

Country Link
JP (1) JPS5550209A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987326A (en) * 1982-11-11 1984-05-19 Mitsubishi Electric Corp Laser output absorbing device
JPS62270717A (en) * 1986-05-19 1987-11-25 Brother Ind Ltd Method for hardening cast iron with laser
JP2007264504A (en) * 2006-03-29 2007-10-11 Fujitsu Ltd Imaging device and imaging method
CN108356418A (en) * 2018-02-02 2018-08-03 武汉光谷航天三江激光产业技术研究院有限公司 A kind of Laser Surface Treatment device and method
CN110091073A (en) * 2019-05-28 2019-08-06 中国科学院宁波材料技术与工程研究所 Multiple beam coupled laser system of processing and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987326A (en) * 1982-11-11 1984-05-19 Mitsubishi Electric Corp Laser output absorbing device
JPS62270717A (en) * 1986-05-19 1987-11-25 Brother Ind Ltd Method for hardening cast iron with laser
JP2007264504A (en) * 2006-03-29 2007-10-11 Fujitsu Ltd Imaging device and imaging method
CN108356418A (en) * 2018-02-02 2018-08-03 武汉光谷航天三江激光产业技术研究院有限公司 A kind of Laser Surface Treatment device and method
CN108356418B (en) * 2018-02-02 2020-02-28 武汉光谷航天三江激光产业技术研究院有限公司 Laser surface treatment device and method
CN110091073A (en) * 2019-05-28 2019-08-06 中国科学院宁波材料技术与工程研究所 Multiple beam coupled laser system of processing and method

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