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Keywords:Measurement and Inspection

Measurement and Inspection Engineering Area

Various processes are performed at the manufacturing production site, however, inevitable disturbances may result in unintentional defects. In welding and joining, internal defects invisible from the outside occur, which deteriorates the joint performance; therefore, inspection is essential. However, there are problems such as a decrease in production efficiency due to a backtracking process after finding a defect, and the fact that some defects cannot be found because of inspection difficulty. If in-situ measuring of internal defects and in-process quality assurance are realized, a great innovation in production technology can be expected. We are studying and developing advanced measurement methods applicable to in-process as follows:

  • Dynamic and non-contact in-situ ultrasonic detection by laser ultrasonic method.
  • Penetration estimation that combines molten pool monitoring and AI.

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