将国产T_(15)K_6硬质合金刀片刃磨好之后,放在原子堆内接受中子照射活化处理,得到放射性同位素Co~(60),利用其γ射线来示踪,借盖革计数管和辐射探测装置系统,测量切屑试样上所贴附的磨损产物的放射性,从而评定刀具的磨损。 在车削正火45号钢试料的过程中,研究了切削时间、切削速度和走刀量对于T_(15)K_4刀具磨损的影响(图1,2,3,4).试验证明,在起始切削的“磨合”时期内,刀具的瞬时磨损率显著地较 The domestic T_ (15) K_6 carbide blade after sharpening, placed in the atomic reactor to accept neutron irradiation activation treatment, get radioisotope Co ~ (60), using its γ-ray tracer, And radiation detector system to measure the radioactivity of worn products attached to chip samples to evaluate tool wear. During the process of turning normalizing steel 45, the effects of cutting time, cutting speed and cutting distance on T 15 K 4 tool wear were studied (Fig.1, Fig.3, Fig.4) Initial cutting “run-in” period, the tool instantaneous wear rate significantly