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Materials 2016, 9(8), 622; doi:10.3390/ma9080622

Evaluation of Workpiece Temperature during Drilling of GLARE Fiber Metal Laminates Using Infrared Techniques: Effect of Cutting Parameters, Fiber Orientation and Spray Mist Application

1
Composite Systems Innovation Centre, Department of Mechanical Engineering, University of Sheffield, Sheffield S1 3JD, UK
2
Advanced Manufacturing Research Centre, Wallis Way, Catcliffe, Rotherham S60 5TZ, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Redouane Zitoune
Received: 30 June 2016 / Revised: 20 July 2016 / Accepted: 22 July 2016 / Published: 28 July 2016
(This article belongs to the Special Issue Machining of Composites and Multi-Stacks of Aerospace Materials)
View Full-Text   |   Download PDF [6210 KB, uploaded 28 July 2016]   |  

Abstract

The rise in cutting temperatures during the machining process can influence the final quality of the machined part. The impact of cutting temperatures is more critical when machining composite-metal stacks and fiber metal laminates due to the stacking nature of those hybrids which subjects the composite to heat from direct contact with metallic part of the stack and the evacuated hot chips. In this paper, the workpiece surface temperature of two grades of fiber metal laminates commercially know as GLARE is investigated. An experimental study was carried out using thermocouples and infrared thermography to determine the emissivity of the upper, lower and side surfaces of GLARE laminates. In addition, infrared thermography was used to determine the maximum temperature of the bottom surface of machined holes during drilling GLARE under dry and minimum quantity lubrication (MQL) cooling conditions under different cutting parameters. The results showed that during the machining process, the workpiece surface temperature increased with the increase in feed rate and fiber orientation influenced the developed temperature in the laminate. View Full-Text
Keywords: drilling; GLARE; minimum quantity lubrication; infra-red; temperature; fiber metal laminates; coolant; machining drilling; GLARE; minimum quantity lubrication; infra-red; temperature; fiber metal laminates; coolant; machining
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Giasin, K.; Ayvar-Soberanis, S. Evaluation of Workpiece Temperature during Drilling of GLARE Fiber Metal Laminates Using Infrared Techniques: Effect of Cutting Parameters, Fiber Orientation and Spray Mist Application. Materials 2016, 9, 622.

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