Title:
レーザー溶接方法
Document Type and Number:
Japanese Patent JP6905670
Kind Code:
B2
Abstract:
To provide a method which is high in inspection accuracy, in the laser welding method including a step of inspecting and correcting positional displacement.SOLUTION: This laser welding method includes: a step of forming a circumferential weld mark by scanning a laser beam in a circumferential shape on a surface of a workpiece by using a laser welding device so that a non-welded part remains in a center; a step of inspecting an image by photographing the circumferential weld mark by an image inspection camera, and grasping a center position of the weld mark on the basis of an external peripheral circle and an internal peripheral circle of the weld mark; a step of calculating a set center position of the laser beam of the laser welding device and a displacement amount of the center position which is grasped by the image inspection; a step of correcting the center position of the laser beam of the laser welding device on the basis of the calculated displacement amount; and a step of welding the workpiece.SELECTED DRAWING: Figure 1
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Inventors:
Ryo Tsukui
Application Number:
JP2018011400A
Publication Date:
July 21, 2021
Filing Date:
January 26, 2018
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B23K26/03; B23K26/042; B23K26/21
Domestic Patent References:
| JP2004216418A | ||||
| JP201386173A | ||||
| JP2012218029A |
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Koji Amano
Michiko Oi
Koji Amano