Title: Investigation on surface grinding of Ti-6Al-4V using minimum quantity lubrication

Authors: Guoqiang Guo; Zhiqiang Liu; Qinglong An; Ming Chen

Addresses: School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. ' School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, HangZhou 310027, China

Abstract: This paper investigates the effects of minimum quantity lubrication (MQL) on the grinding performance of Ti-6Al-4V using SiC abrasive, the evaluation of the performance consists of analysing the grinding force, specific grinding energy, force ratio, surface roughness and surface morphology. The experiment results indicated that the favourable lubricating effect of MQL oil made it have the lowest value of grinding force, specific energy and force ratio. MQL had better surface finish than dry grinding, but fluid grinding had the lowest value of surface roughness under different grinding depth and worktable feed rate. Surface damages such as side flow, plastic deformation and redeposition were present in dry and fluid grinding. As grinding depth increased, the damages became much more severe. But in condition of MQL, it gave better surface integrity than dry and fluid grinding.

Keywords: minimum quantity lubrication; MQL; Ti-6Al-4V; grinding force; surface integrity; surface grinding; SiC abrasive; silicon carbide; titanium alloys; specific grinding energy; force ratio; surface roughness; surface morphology; surface quality; lubricating effect.

DOI: 10.1504/IJAT.2012.051026

International Journal of Abrasive Technology, 2012 Vol.5 No.3, pp.187 - 201

Received: 31 May 2012
Accepted: 31 May 2012
Published online: 30 Jul 2014 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article