Abstract

This work is dedicated to assessing the effect of TiN, ZrN, TiN + ZrN, (Ti–Zr)N, ZrN–(Ti–Zr)N–TiN nanostructured coatings, deposited on plates of hard alloy T15K6 by the PVD method, on tool wear and thermoelectric parameters of the process of turning work pieces from steels 45, 38HS, and 12H18N10T. The greatest decrease in temperature in the cutting zone was recorded during the processing of steels 45 and 38HS, characterized by high thermal conductivity coefficients, while the maximum effect was achieved due to TiN + ZrN and ZrN coatings, for low thermal conductivity steel 12H18N10T, the lowest temperature was provided by the ZrN, (Ti–Zr)N and ZrN + (Ti–Zr)N + TiN compositions. Analysis of the variable component of the thermo-EMF signal during cutting shows a decrease in the amplitude of oscillations for coatings that provide the greatest wear resistance of the tool. According to the results of the experiments, such an effect when turning steels 45 and 38HS at optimal speeds was demonstrated by ZrN + (Ti–Zr)N + TiN and TiN + ZrN coatings, and for stainless steel 12H18N10T, ZrN, ZrN + (Ti–Zr)N + TiN and TiN. The established relationship between the wear resistance of carbide inserts and the amplitude of fluctuations of the variable thermos-EMF component makes it possible to use it as an indirect criterion for selecting the optimal composition of the wear-resistant coating from the point of view of thermophysical compatibility with tool and machined materials.

中文翻译：

---

复合涂层硬质合金刀片车削钢过程的热电特性

摘要

这项工作致力于评估通过 PVD ​​方法沉积在硬质合金 T15K6 板上的 TiN、ZrN、TiN + ZrN、(Ti–Zr)N、ZrN–(Ti–Zr)N–TiN 纳米结构涂层对车削 45、38HS 和 12H18N10T 钢工件过程中的刀具磨损和热电参数。在 45 和 38HS 钢的加工过程中，切削区温度下降幅度最大，其特点是导热系数高，而对于低导热系数钢 12H18N10T，TiN + ZrN 和 ZrN 涂层的效果最大。最低温度由 ZrN、(Ti-Zr)N 和 ZrN + (Ti-Zr)N + TiN 组合物提供。对切​​削过程中热电动势信号的可变分量的分析表明，为刀具提供最大耐磨性的涂层的振荡幅度减小。根据实验结果，ZrN + (Ti–Zr)N + TiN 和 TiN + ZrN 涂层证明了以最佳速度车削 45 和 38HS 钢时的这种效果，对于不锈钢 12H18N10T、ZrN、ZrN + ( Ti–Zr)N + TiN 和 TiN。硬质合金刀片的耐磨性与可变热电势分量波动幅度之间建立的关系使得可以将其用作从热物理角度选择耐磨涂层最佳成分的间接标准与工具和加工材料的兼容性。ZrN + (Ti–Zr)N + TiN 和 TiN + ZrN 涂层证明了以最佳速度车削 45 和 38HS 钢时的这种效果，对于不锈钢 12H18N10T、ZrN、ZrN + (Ti–Zr)N + TiN 和锡。硬质合金刀片的耐磨性与可变热电势分量波动幅度之间建立的关系使得可以将其用作从热物理角度选择耐磨涂层最佳成分的间接标准与工具和加工材料的兼容性。ZrN + (Ti–Zr)N + TiN 和 TiN + ZrN 涂层证明了以最佳速度车削 45 和 38HS 钢时的这种效果，对于不锈钢 12H18N10T、ZrN、ZrN + (Ti–Zr)N + TiN 和锡。硬质合金刀片的耐磨性与可变热电势分量波动幅度之间建立的关系使得可以将其用作从热物理角度选择耐磨涂层最佳成分的间接标准与工具和加工材料的兼容性。