浸炭焼入れ歯車の歯面強さに関する基礎研究 : 転がり滑り接触面の変化に及ぼす硬化プロファイルの影響(機械要素,潤滑,工作,生産管理など)

概要

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In order to make power transmission gears smaller and lighter, it is necessary to examine the surface durability of case-carburized gears in detail under the high load condition. In this paper, the influence of hardening profile on changes of rolling-sliding contact surface made of a case-carburized alloy steel was investigated by using a 2-roller-type contact fatigue testing machine. For the rollingsliding contact surface of the case-carburized test rollers in which the hardening profile increases by changing heat treatment process, the followings were clarified: (1) The occurrences of micro cracks and micro pits can not be prevented. (2) The value of endurance limit assuming no spall is not improved. (3) The changes of surface temperature and surface roughness are influenced by contact stress and stress cycle. (4) The amount of wear increases. (5) The value of hardness near the surface changes significantly and decreases under the high load condition.
社団法人日本機械学会の論文
2004-09-25