On the Influence of Work Material Microstructure on Chip Formation, Cutting Forces and Acoustic Emission when Machining Ti-6Al-4V
Paper in proceeding, 2013

The influence of heat treatment of work material on chip formation, when machining Ti-6Al-4V, was studied through microstructural investigation of chips, as well as response on cutting forces and acoustic emission. Three different microstructures were investigated; equiaxed, bimodal and Widmanst├Ątten. It is well known that machining of titanium produces shear localized chips at all industrially practical cutting speeds and feed rates, however there is also a transition from aperiodic to periodic sawtooth chip formation. The feed rate was varied at constant cutting speed to study this transition from aperiodic to periodic saw-tooth chips in the three microstructures. Face turning cutting tests were used when sensor signals were collected. The results from this investigation stress the importance to consider work material microstructure when studying the chip formation process, and its impact on cutting forces and acoustic emission, when machining Ti-6Al-4V.

Microstructure

Titanium

Acoustic emission

Machinability

Author

Stefan Cedergren

Volvo Group

Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering

Giulio Petti

University of Naples Federico II

Göran Sjöberg

Volvo Group

Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering

Procedia CIRP

22128271 (ISSN)

Vol. 12 55-60

Areas of Advance

Production

Subject Categories

Manufacturing, Surface and Joining Technology

DOI

10.1016/j.procir.2013.09.011

More information

Latest update

10/18/2021