| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of introducing compressive stress in a welded joint having at least one weld toe. <P>SOLUTION: The method includes the steps of: covering the weld toe of the welded joint with a resistance wire (206); heating the weld toe by the resistance wire, where the weld toe is heated to a predetermined temperature (208); maintaining the weld toe at the predetermined temperature for a predetermined amount of time (210); removing the resistance wire from the weld toe (212); and quenching the weld toe with a cooling medium (214), wherein compressive stress is introduced to the weld toe during the quenching. <P>COPYRIGHT: (C)2012,JPO&INPIT |
