JPS5641089A - Laser welding method - Google Patents

Laser welding method

Info

Publication number
JPS5641089A
JPS5641089A JP11674679A JP11674679A JPS5641089A JP S5641089 A JPS5641089 A JP S5641089A JP 11674679 A JP11674679 A JP 11674679A JP 11674679 A JP11674679 A JP 11674679A JP S5641089 A JPS5641089 A JP S5641089A
Authority
JP
Japan
Prior art keywords
laser beam
projection
temperature rise
irradiated
welding
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
JP11674679A
Other languages
Japanese (ja)
Inventor
Ken Ishikawa
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 JP11674679A priority Critical patent/JPS5641089A/en
Publication of JPS5641089A publication Critical patent/JPS5641089A/en
Pending legal-status Critical Current

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  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To prevent the thermal effect due to excessive temperature rise, by making uniform the temperature rise of the weld line, through the variable laser beam radiation energy according to the degree of thermal diffusion, in laser welding of the weld line different in the thermal diffusion degree. CONSTITUTION:The cover 3 is made on the base board 2 for electronic parts 1, it is rotated in synchronizing with the center shaft 10, and the laser beam 12 is irradiated on the boundary of the board 2 and the cover 3. In this case, unless the visual laser beam 16 is irradiated on the projection 6, the switch 22 of the control mechanism 20 is kept open and the welding laser oscillator 11 is at low output. Accordingly, the temperature rise at the boundary other than the projection 6 is kept at suitable condition. When the welding advances and the laser beam 16 irradiates on the projection 6, the switch 22 is closed and the laser beam is increased by the increment to compensate the loss due to heat dissipation at the projection 6 and irradiated on the part theta. Thus, the temperature rise in the part theta is the same as other parts.
JP11674679A 1979-09-13 1979-09-13 Laser welding method Pending JPS5641089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11674679A JPS5641089A (en) 1979-09-13 1979-09-13 Laser welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11674679A JPS5641089A (en) 1979-09-13 1979-09-13 Laser welding method

Publications (1)

Publication Number Publication Date
JPS5641089A true JPS5641089A (en) 1981-04-17

Family

ID=14694736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11674679A Pending JPS5641089A (en) 1979-09-13 1979-09-13 Laser welding method

Country Status (1)

Country Link
JP (1) JPS5641089A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521668A (en) * 1983-11-08 1985-06-04 Westinghouse Electric Corp. Method of hermetically laser sealing electronic packages
US4845354A (en) * 1988-03-08 1989-07-04 International Business Machines Corporation Process control for laser wire bonding
GB2253282A (en) * 1991-02-27 1992-09-02 British Aerospace Method and apparatus for controllably laser processing a surface
US8777482B2 (en) * 2007-05-26 2014-07-15 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Detecting defects during laser welding
JP2020522848A (en) * 2018-01-05 2020-07-30 エルジー・ケム・リミテッド Laser welding equipment with laser beam blocking block

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50137845A (en) * 1974-04-23 1975-11-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50137845A (en) * 1974-04-23 1975-11-01

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521668A (en) * 1983-11-08 1985-06-04 Westinghouse Electric Corp. Method of hermetically laser sealing electronic packages
US4845354A (en) * 1988-03-08 1989-07-04 International Business Machines Corporation Process control for laser wire bonding
GB2253282A (en) * 1991-02-27 1992-09-02 British Aerospace Method and apparatus for controllably laser processing a surface
US8777482B2 (en) * 2007-05-26 2014-07-15 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Detecting defects during laser welding
US9267905B2 (en) 2007-05-26 2016-02-23 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Detecting defects during laser welding
JP2020522848A (en) * 2018-01-05 2020-07-30 エルジー・ケム・リミテッド Laser welding equipment with laser beam blocking block

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