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Laser micro-nano texturing of a polycrystalline ultra-hard cutting tool to improve wear behaviour

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conference contribution
posted on 19.03.2019, 09:37 by Manuela Pacella, Amir Badiee, Priyanka Ghosh
Polycrystalline diamond cutting tools are widely used for drilling and turning applications due to their high wear resistance and long durability, however the issue of adhesion of workpiece to the cutting tool significantly affects the cutting tool lifetime. Using a nanosecond fibre laser surface texturing of polycrystalline diamond single point cutting tools is proposed to improve diamond wear and anti-adhesion properties in machining aluminium alloys. The textures, with topographical features’ depths and pitch ranging from tens of nanometers to tens of micrometers, were first milled using a fibre laser (1064-nm wavelength) at different fluences, feed speeds and pulse durations, and finally characterised using a combination of Scanning Electron Microscopy, White Light Interferometry and Energy Dispersive X-Ray (EDX). The effect of different textures on the wear properties was investigated in turning tests under dry conditions. The tests were stopped every 20 passes and the wear analysed through an Alicona optical 3D measurements. The online monitoring and post-processing of the cutting forces and the microscopical characterisation of the tested cutting tools allowed the evaluation of the effects of texture design and adhesive properties. For textures depths in the order of 260nm and post process roughness in the order of tens of nanometers, a reduction of cutting force and an improvement of antiadhesive effect were achieved in dry turning.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

SPIE 2019 LASE

Citation

PACELLA, M., BADIEE, A. and GHOSH, P., 2019. Laser micro-nano texturing of a polycrystalline ultra-hard cutting tool to improve wear behaviour. Proceedings of SPIE 10906, Laser-based Micro- and Nanoprocessing XIII, 1090607 (4 March 2019); doi: 10.1117/12.2507208

Publisher

© SPIE

Version

VoR (Version of Record)

Acceptance date

09/01/2019

Publication date

2019

Notes

This paper was presented at the SPIE LASE 2-7 February 2019, San Francisco, California, United States. Copyright 2019 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.

Language

en

Location

San Francisco

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