1217 高周波焼入れ歯車の硬さと曲げ疲労強度(面圧強度・疲労強度,一般講演)

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This paper presents a study on surface hardness and bending fatigue strength of induction hardened gears. The measurement of hardened layer and the bending fatigue test were carried out for induction hardened gears made of as-rolled and thermally refined S35C and S45C steels, and then profiles of hardened layer, surface hardness and S-N curves were obtained. Effects of the pre-treatment, the heating time, the electric power and the frequency on profile and micro structure of hardened layer of induction hardened gears were examined. The relationships between surface hardness, hardened depth and bending fatigue strength were determined. On the basis of results obtained, maps to determine an induction hardening condition suitable for the bending fatigue strength of induction hardened gears were proposed.
社団法人日本機械学会の論文
2008-04-20