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Sivakumar

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  2. Quenching after induction tempering

    Sivakumar posted a topic in Heat Treating, general discussion
    Hi, We do induction hardening of a part followed that induction tempering in same cycle. After induction tempering part is hot. Hence, we do 30 second air cooling then quench with polymer for safety handling purpose. Part temperature will be 80˚C before polymer quenching. We have checked part for any presence of crack after above activity. There was no crack observed. However, our customer objects that quenching shall not be done after induction tempering. We have explained them that part temperature will be lower during quenching and crack detection will be done. But customer is not accepting. We like to know technically that whether quenching after induction tempering will have any impact on part.

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