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1. (WO1997038819) CONTROL METHOD IN MULTI-LAYER SEQUENCE WELDING

Pub. No.:    WO/1997/038819    International Application No.:    PCT/JP1997/001288
Publication Date: Oct 23, 1997 International Filing Date: Apr 14, 1997
IPC: B23K 9/127
Applicants: FANUC LTD

KOSAKA, Tetsuya

IKEDA, Yoshitaka

Inventors: KOSAKA, Tetsuya

IKEDA, Yoshitaka

Title: CONTROL METHOD IN MULTI-LAYER SEQUENCE WELDING
Abstract:
In a multi-layer sequence welding, the widths of the welding line and the gap between works (A, B) are measured using a laser sensor mounted on a robot, while the welding of a first layer being executed, so that a welding torch mounted on the robot may move along the welding line and the welding conditions may correspond to the measured gap width. This gap width is stored together with the welding line data in storage means so that the welding torch may be moved along the welding line and the welding conditions may correspond to the gap width by using the data for the welding of the second and later layers.