Title:
レーザ接合方法及びレーザ接合装置
Document Type and Number:
Japanese Patent JP7223368
Kind Code:
B2
Abstract:
To provide a laser welding method and a laser welding system which efficiently join two polymerized thermoplastic resins and increase the strength of the joined part after the welding is completed.SOLUTION: By irradiating the workpiece W (upper material 2 and lower material 3) with a laser beam L in the top hat mode of cross-sectional intensity distribution, the polymerized portions of the upper material 2 and the lower material 3 are efficiently joined. Specifically, first irradiate the upper material 2 with a laser beam L in the top hat mode and drill a through hole 2B in the upper material 2 (Figure 2(a)). Next, the laser light L in the top hat mode is irradiated to the lower material 3 through the through hole 2B. Thereby, the lower end of the through hole 2B and the lower surface 2C and the upper surface 3A in the vicinity thereof are melted, and the two materials 2, 3 are joined together at that point as a joining point. Laser light L is irradiated at several points in the polymerization portions of both materials 2 and 3 in the manner described above, and the polymerization portions of both materials 2 and 3 are joined.SELECTED DRAWING: Figure 2
Inventors:
Kiyoshi Uzawa
Keiichi Yamaoka
Akinori Sakamoto
Keisuke Kyomoto
Keiichi Yamaoka
Akinori Sakamoto
Keisuke Kyomoto
Application Number:
JP2019036767A
Publication Date:
February 16, 2023
Filing Date:
February 28, 2019
Export Citation:
Assignee:
Kanazawa Institute of Technology
Shibuya Industry Co., Ltd.
Shibuya Industry Co., Ltd.
International Classes:
B29C65/16
Domestic Patent References:
| JP2007111931A | ||||
| JP60225735A |
Attorney, Agent or Firm:
Makoto Kanzaki
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