Analysis of Chip Morphology in Drilling Ti-6Al-4V by Using Graphene Oxide Nanofluids

Titanium and its alloys have been widely used in various areas due to their superior mechanical properties. However, Titanium and its alloys have low elastic modulus and low thermal conductivity, which lead to extreme high temperature during the machining process and result in poor workpiece quality...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-12, Vol.677 (2), p.22011
Main Authors: Mao, Xuanyu, Yi, Shuang, Mo, John, Dimla, Eric, Ding, Songlin
Format: Article
Language:English
Subjects:
Carbide tools
Chip formation
Coolants
Drilling
Graphene
High temperature
Machining
Mechanical properties
Modulus of elasticity
Nanofluids
Thermal conductivity
Titanium base alloys
Tungsten carbide
Workpieces
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Titanium and its alloys have been widely used in various areas due to their superior mechanical properties. However, Titanium and its alloys have low elastic modulus and low thermal conductivity, which lead to extreme high temperature during the machining process and result in poor workpiece quality. The main objective of this paper is to investigate the effectiveness of graphene oxide (GO) nanofluids in drilling process of Ti-6Al-4V by using tungsten carbide tools. The spiral chips were obtained when GO nanofluid was used and squeezed string chips were obtained when conventional coolant was applied. By analysing the back surface of the chips, it was found that the high coolant pressure resulted in better chip formation, which had less scratch and plunking. In addition, by using higher concentration of GO nanofluids, the adhesion phenomenon was found significantly reduced.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/677/2/022011