炭素鋼および鋳鉄の切削における超硬工具の摩耗機構

概要

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　This report describes an analysis of the tool wear mechanism with the experimental data obtained from measuring tool life and cutting temperature in turning several carbon steels and east iron with carbide tool.　The tool wear mechanism was classified by Takeyama into two basic types :　i.e. mechanical abrasion and physicochemical wear. According to the analyses and experimental results，the main findings are as follows : 　（1）Physicochemical type of tool wear plays an important role in turning cast iron from the standpoint of crater and flank wear，but it has a predominant effect on the crater wear that is conditioned by a higher cutting temperature than 870 deg. C in turning steels. 　（2）Under the condition of a cutting temperature lower than 870 deg. C in cutting steels the mechanism of crater wear is a combination of physicochemical wear and mechanical abrasion. （3）The flank wear mechanism is always of the mechanical abrasion type in cutting steels.
北見工業大学の論文