Machining and Machine-tools

1

Analysis of acoustic emission signal evolution for monitoring diamond-coated tool delamination wear in machining

P. Lu¹ and Y.K. Chou¹,     ¹Mechanical Engineering Department, The University of Alabama, USA.

Abstract:

Diamond-coated cutting tools have been utilized as a cost-effective alternative to brazed polycrystalline diamond tools in applications such as machining lightweight high-strength materials (e.g. metal matrix composites). However, coating delamination is a major failure mode of diamond-coated tools, terminating tool life prematurely. Once delamination failure occurs, the tool substrate often suffers severe abrasive wear, leading to catastrophic tool failures thus interrupting machining operations. Accurate detection and forecasting ...