0
research-article

Proposal of an ultrasonic assisted electrochemical grinding method and its fundamental machining characteristics in the grinding of Ti-6Al-4V

[+] Author and Article Information
Sisi Li

Dept. of Machine Intelligence & Systems Engineering, Akita Prefectural University, Yurihonjo, Akita 015-0055, JapanDept. of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, China
jjjjyyzzzz@gmail.com

Yongbo Wu

Dept. of Machine Intelligence & Systems Engineering, Akita Prefectural University, Yurihonjo, Akita 015-0055, JapanDept. of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, China
wuyb@sustc.edu.cn

Mitsuyoshi Nomura

Dept. of Machine Intelligence & Systems Engineering, Akita Prefectural University, Yurihonjo, Akita 015-0055, Japan
nomura@akita-pu.ac.jp

Tatsuya Fujii

Dept. of Machine Intelligence & Systems Engineering, Akita Prefectural University, Yurihonjo, Akita 015-0055, Japan
t-fujii@akita-pu.ac.jp

1Corresponding author.

ASME doi:10.1115/1.4039855 History: Received March 23, 2017; Revised March 27, 2018

Abstract

The Ti-6Al-4V is a widely used alloy in the aerospace industry. In order to improve the grindability of Ti-6Al-4V, a hybrid material removal process is proposed in this study. This process is a combination of ultrasonic assisted grinding (UAG) and electrochemical grinding (ECG); hereafter called ultrasonic assisted electrochemical grinding (UAECG). For confirming the feasibility of the proposed technique, an experimental setup was constructed and the fundamental machining characteristics of UAECG in the grinding of Ti-6Al-4V were experimentally investigated. The results obtained from the investigation can be summarized as follows: (1) The normal and tangential grinding forces in UAECG were smaller than those in conventional grinding (CG) by 57% and 56%, respectively; (2) The work-surface roughness Ra both in ECG and UAECG decreased with the increasing electrolytic voltage, UI, and the surface damage such as plastic deformation and cracks which often occur in CG were not observed in UAECG; (3) The wheel radius wear in UAECG was considerably smaller than that in ECG when UI < 10 V. The wheel wear in CG was predominantly attributed to the grain drop out, whereas in ECG and UAECG the working lives of the wheels were predominantly affected by the chip adhesion and the grain fracture; (4) A 78 nm thick titanium dioxide (TiO2) layer was generated on the work-surface at UI = 20 V, and thus the Vickers micro-hardness of work-surface in ultrasonic assisted electrochemical was lower than that in original by 15%.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In