硬质合金织构刀的切削性能影响因素的试验研究

2018-07-16

作者：符永宏，李玉弟，康正阳，顾亚励，邹国文，郑峰单位：江苏大学

摘要：利用激光技术在硬质合金刀具的前刀面上进行织构化处理，制备凹腔织构刀和毛化织构刀；在润滑条件下进行切削，并将其切削性能与未织构刀的切削性能进行对比。试验结果表明：与未织构刀相比，凹腔织构刀和毛化织构刀能显著降低摩擦系数、刀—屑接触长度、切屑卷曲半径，毛化织构刀效果更为明显；在油润滑条件下，由于织构的作用使得润滑液能够进入刀—屑接触面，并能存储一部分润滑液，毛化织构能增强抗粘结性；该研究表明毛化织构能增强刀具的切削性能。

关键词：激光技术；织构化；切削试验；切削性能

中图分类号：TG711；TH161；TN249文献标志码：A

Experimental Research on Cutting Performance of Cemented Carbide Cutting Tools by Laser Texturing

Fu Yonghong，Li Yudi，Kang Zhengyang，Gu Yali，Zou Guowen，Zheng Feng

Abstract:The tungsten carbide cutting tools are done with texturing on the rake face by using laser technology to fabricate convex textured tools and concave cavity textured tools.Cutting tests are carried out under the liquid lubrication condition，and their cutting performances are compared with that of untextured tools.The results show that compared with the conventional tools，their the friction coefficient，the length at the toolchip interface，the radius of chips are significantly decreased，especially the convex textured tools.Under the liquid lubrication condition，the liquid can flow into the toolchip interface due to the textures，and they can be as the storage of the lubrication.Besides，convex texture can enhance antiadhesive property.As a result，the research shows that convex texture can enhance the tool′s cutting performance.

Keywords:laser technical；texturing；cutting experiment；cutting performance