ドライホブ切りにおけるホブクレータ摩耗の挙動に関する基礎的研究 : 第2報, 切削速度の影響

概要

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The influence of cutting speed on the behavior of crater wear on tool face using different three kinds of high-speed steel hob materials in dry hobbing was mainly investigated in this paper. Experiments were carried out using a fly tool. As a consequence, the following points were clarified : (1)From cutting speeds of 47 m/min to 86 m/min, the crater wear of corresponding to SKH 55 and M 34 hob materials coated with (Al, Ti)N is increasing with an increase in cutting speed. At a cutting speed of 117 m/min, it decreased remarkably. (2)It was suggested that the reason why the crater machanism changes from 86 m/min to 117 m/min is caused by the influence of adhesion on the face. (3)With a hob material of SKH 10+(Al, Ti)N, the crater wear does not depend on the cutting speed and it shows almost almost the same value. (4)The SKH 10+(Al, Ti)N tool is suitable at low cutting speeds and the corresponding to SKH 55+(Al, Ti)N tool is useful at high cutting speeds.
社団法人日本機械学会の論文
2000-08-25