| 摘要 |
An abnormality determination and estimation device for a weld product in a welding process includes a jig device and an AE sensor. The jig device holds the product by a holding face, through which the jig device and the product are in close contact with each other. The AE sensor detects an elastic wave in the jig device. Accordingly, abnormality detection accuracy can be improved, and abnormalities can be discriminated.
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