高速度工具に關する研究(XIII)
1952 年 38 巻 5 号 p. 333-336
詳細
1952 年 38 巻 5 号 p. 333-336
Following th 12 the report, the influence of the heat-treatments on the torsional impact value of the 18-4-1 standard high speed steel were investigated.
Moreover, experiments were carried out concerning the influence of the principal elemeents of C, Cr, W, V on the torsional impact value, hardness numbers and duration time in cutting test of the 18-4-1 standard type.
