[Case Study 4 on Heat Treatment Challenges] A must-see for those struggling with tolerances due to distortion!

Control over the total process is necessary for distortion! The factors causing dimensional changes are various.

In recent years, the precision required for parts has become more advanced, and it is not uncommon for tolerances in drawings to be specified at less than a micron. Incorporating dimensional tolerances is a challenge, but when heat treatment is applied, dimensional changes will inevitably occur to some extent. There are various factors involved, but broadly speaking, two main causes can be identified: "dimensional changes due to the release of residual stress" and "dimensional changes due to structural transformation." It would be simple if we could just set a grinding allowance and achieve the dimensions in the final process, but a larger grinding allowance increases the amount of work required, and there are some features, such as knurling or surfaces with subtle angles, that are difficult to correct. Control over distortion requires a total process approach, and our company is engaged in efforts and development to minimize distortion for various parts. In particular, when changing processes from atmospheric treatment to high-frequency quenching, significant effects can be expected. If you are facing issues with distortion, please feel free to consult us. *For more details, please refer to the PDF materials or feel free to contact us.*

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