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Abnormality determination and estimation method for product of plastic working, and an abnormality determination and estimation device

  • US 20040249611A1
  • Filed: 06/02/2004
  • Published: 12/09/2004
  • Est. Priority Date: 06/02/2003
  • Status: Active Grant
First Claim
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1. An abnormality determination and estimation method for a product of plastic working, comprising:

  • providing an AE sensor in a processing apparatus, for detecting an elastic wave in the processing apparatus; and

    an abnormality determination and estimation method for discriminating at least two or more abnormalities of the product of plastic working and estimating a presence or an absence of the abnormality for each processing step of the processing apparatus based on the elastic wave detected by the AE sensor.

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