刀具前刀面几何形状对AISI52100淬硬钢硬车削过程的影响

The Influence of Tool Rake Surface Geometry on the Hard Turning Process of AISI52100 Hardened Steel.

作者信息

Xu Hanzhong, Zhou Honggen, Ma Zhengyu, Dai Lei, Jing Xuwen, Li Guochao, Sun Yujing

机构信息

School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212000, China.

Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment, Jiangsu University of Science and Technology, Zhenjiang 212000, China.

出版信息

Materials (Basel). 2019 Sep 23;12(19):3096. doi: 10.3390/ma12193096.

DOI:10.3390/ma12193096

PMID:31547529

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6804167/

Abstract

The hard turning process has been widely used in the field of hard material precision machining because of its high efficiency, low processing residual stress, and low environmental pollution. Due to its undesirably processing quality, it is still not a substitute for traditional grinding, so many studies have reported that the process has been optimized. However, there has been little research on the geometry optimization of hard cutting tools, which have a great influence on the traditional machining process. In this paper, two tools with different rake face shapes are designed. The finite element analysis method is used to compare their performance with a conventional plane tool while turning hardened steel. The results show that the cutting performance of the designed tool T1 and T2 (chip morphology, cutting force, and cutting temperature) and the quality of the machined surface are improved compared with the tool. The cutting force decreased by 12.72% and 14.74%, the cutting temperature decreased by 7.56% and 9.01%, respectively, and the surface residual stress decreased by 26.56% and 28.66%.

摘要

硬车削工艺因其高效、加工残余应力低、环境污染小等优点，在硬质材料精密加工领域得到了广泛应用。然而，由于其加工质量不尽人意，仍无法替代传统磨削，因此许多研究报道了对该工艺的优化。然而，对于对传统加工工艺有重大影响的硬切削刀具的几何形状优化研究却很少。本文设计了两种具有不同前刀面形状的刀具。采用有限元分析方法，在车削淬硬钢时将它们与传统平面刀具的性能进行比较。结果表明，与传统刀具相比，所设计的刀具T1和T2的切削性能（切屑形态、切削力和切削温度）以及加工表面质量均有所提高。切削力分别降低了12.72%和14.74%，切削温度分别降低了7.56%和9.01%，表面残余应力分别降低了26.56%和28.66%。