| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for measuring an interpass temperature and a welding method using the device for measuring an interpass temperature capable of measuring temperatures right before and after welding in a measurement position apart from a weld line by a certain distance, where the device for measuring the interpass temperature is positioned between welded passes by movement of an arm of a welding robot. SOLUTION: The device for measuring the interpass temperature, which measures a work surface temperature in a located position, is mounted on a welding torch support part on an arm tip end of the welding robot right before welding operation, is located so that a measuring direction turns to a position apart from the weld line by the certain distance vertically to the weld line by the movement of the arm. When a measurement result is below a management prescribed value, welding of a next pass is sequentially continued. When the measurement result exceeds the management prescribed value, one or a plurality of times of temperature measurement is conducted again after a predetermined time passes. The welding of the next pass is restarted at a time point when the measurement result is below the management prescribed value. COPYRIGHT: (C)2009,JPO&INPIT
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