Distortions of Comparatively Small-Sized Gears Caused by Induction Hardening : 4th Report, On the Mechanism of Distortion of Inner Diameter Due to Induction Heating

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  • 小形歯車の高周波焼入れによって生ずるひずみ : 第4報, 高周波加熱の際の内径ひずみ発生機構
  • コガタ ハグルマ ノ コウシュウハ ヤキイレ ニ ヨッテ ショウズル ヒズミ 4

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Abstract

The results of measurements of distortions caused by induction hardening were described in the 1st and 2nd reports, and the mechanisms of distortion of gear teeth were studied in the 3rd report. In the present paper, the mechanism of inner diameter distortion due to induction heating has been considered. We can deal with circular plates instead of gears in this case. The temperature distribution in the circular plate when induction-heated has been obtained by graphical solution, and the equation of thermal stress distribution has been introduced. Thus, the thermal stress and inner diameter distortion are calculated for several induction heating conditions, and the mechanism of distortion caused by induction heating has been made clear.

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