An empirical study on the characterization of machined surface integrity by chip morphology in dry end-milling of titanium alloy

作者：Arif Muhammad^*; Rahman Mustafizur; San Wong Yoke; Kumar Senthil

来源：Proceedings of the Institution of Mechanical Engineers - Part B: Journal of Engineering Manufacture , 2014, 228(3): 471-476.

DOI：10.1177/0954405413501671

• High-speed milling
• surface integrity
• titanium alloy
• chip morphology
• sub-surface damage

Titanium alloys manifest low thermal conductivity and high work hardenability in machining. These alloys are thus considered as difficult-to-machine at higher cutting speeds and pose serious problems in machining such as degraded machined surface and rapid tool-wear. Mostly, the integrity of the machined surface is assessed by post-process microscopic examination or by metallurgical testing techniques where machined workpiece needs to be further processed to perform subsequent testing on sophisticated equipment in usually meticulous ways. This study presents a qualitative but simple approach for the rapid characterization of the machined surface integrity in high-speed milling of titanium alloy. It has been established empirically that the chip morphology carries significant information about the machined surface integrity, and hence, can be considered as a reliable representative of the machined surface integrity.

• 出版日期2014-3