Improving machinability of titanium alloy by electro-pulsing treatment in ultra-precision machining

被引：34

作者：

Lou, Yonggou ^{[1
]}

Wu, Hongbing ^{[2
]}

机构：

[1] Ningbo Polytech, Sch Haitian, Ningbo 315800, Zhejiang, Peoples R China

[2] Zhejiang Univ, Coll Mech & Energy Engn, Ningbo Inst Technol, Ningbo 315100, Zhejiang, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2017年 / 93卷 / 5-8期

关键词：

Ultra-precision machining; Electro-pulsing treatment; Machinability; Surface roughness; Titaniumalloy;

D O I：

10.1007/s00170-017-0674-6

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Titanium alloys have promising properties for optical applications but are difficult to machine. This paper proposes a new method for improving the machinability of titanium alloys in ultra-precision machining by applying electro-pulsing treatment (EPT). EPT is carried out to improve the plasticity of a typical titanium alloy, Ti6Al4V. Hardness and compression tests confirmed that yield stress and hardness are both reduced after EPT. Finite element modelling and ultra-precision machining were performed to study the machinability of Ti6Al4V before and after EPT. Lower cutting forces with lower power spectral densities, more continuous chips and better surface finish were obtained after EPT.

引用

页码：2299 / 2304

页数：6

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