Laser de-coating of hard DLC coatings from tungsten carbide cutting tool-Reference-Cited by-同舟云学术

Laser de-coating of hard DLC coatings from tungsten carbide cutting tool

Published:2020-10-12 Issue:1-2 Volume:235 Page:13-22
ISSN:0954-4054
Container-title:Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture

Author:

Assurin Siti Rozakiyah¹^ORCID,Mativenga Paul²,Rajab Fatema³,Cooke Kevin⁴,Field Susan⁴

Affiliation:

1. Mechanical Engineering Department, Seberang Perai Polytechnic, Penang, Malaysia

2. School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester, UK

3. Laser and Optoelectronics Engineering Department, College of Engineering, Al-Nahrain University, Baghdad, Iraq

4. Miba Coating Group, Teer Coatings Ltd, Droitwich, Worcestershire, UK

Abstract

Laser irradiation de-coating is a promising new approach for effective coating removal of cutting tools. While this method has demonstrated feasibility for conventional coatings, its use and efficacy on lubricant coating is however yet to be ascertained. This paper reports on the results of excimer laser de-coating of hard DLC from DLC-coated tungsten carbide (WC) substrates. A range of fluence and pulse was studied to evaluate the effectiveness of the de-coating process. Result shows that laser parameters of 7 J/cm2 fluence, 400 pulse and 25 Hz frequency were found to yield optimum results in removing hard DLC coating of 3.2 μm thickness from WC substrates. The experimental work indicated successful laser de-coating of hard DLC coating without noticeable damage to the WC substrate. The capability of this new de-coating process is significant in the aerospace industry as it could facilitate re-grinding and recoating of drills thereby improving economics of manufacturing. The process windows could also be applied in the removal of DLC from other cutting tools and applications.

Publisher

SAGE Publications

Subject

Industrial and Manufacturing Engineering,Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/0954405420962389

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