| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately determine the quality of a welding part. <P>SOLUTION: A welding quality determination device 12 calculates the area of the temperature distribution of a welding part, and calculates the ratio of the calculated area and the area of the temperature distribution of the welding part at normal time. The welding quality determination device 12 calculates a welding width direction position at which the temperature of the welding part becomes highest from the temperature distribution of the welding part, and calculates a difference value between the calculated welding width direction position and the welding width direction position, which is calculated from the temperature distribution of the welding part at normal time and at which the temperature of the welding part becomes the highest. The welding quality determination device 12 determines the quality of the welding part on the basis of the calculated ratio and difference value. Thus, the quality of the welding part is accurately determined. <P>COPYRIGHT: (C)2013,JPO&INPIT |
