Drill hole surface characterisation of hybrid FRP laminates through statistical analysis

Title

Drill hole surface characterisation of hybrid FRP laminates through statistical analysis

Creator

Babu N.S.M.; Mathivanan N R.; Kumar M H.

Description

As it is known that the hybrid Fibre Reinforced Polymer (FRP) composite laminate is a recently evolved class of structural material. Hence, the present work deals with secondary processing ability like hole drilling on hard to machine FRP laminate. The influence of drilling attributes on the delamination factor and surface roughness contours are studied for a high thickness hybrid (carbon/glass FRP) laminates. Here, the experimentation was performed utilising Taguchis L27 design of experiments array. Later, on post-drilling, the predominant and optimum variables were studied through taguchi and variance analysis to highlight their contribution on the response functions. Taguchi results indicate that the combination of the 90?tungsten carbide tool, speed of 800 rpm, and rate of feed 50 mm/min gives the best performance concerning the delamination. Also, it was observed that the combination of the 118?tungsten carbide tool, cutting speed of 900 rpm and the rate of feed 60 mm/min give the best performance concerning surface roughness. Whereas, as per ANOVA, the highest percentage contribution factor was concerned to a tool material followed by other factors and analysed data lie with the confidence level of 95%. The work also indicates that tungsten carbide tool yield better results compared to high-speed steel tool. Further, fibre morphology has been studied, which indicates optimal structure with minimal damage. 2020 Engineers Australia.

Source

Australian Journal of Mechanical Engineering, Vol-21, No. 2, pp. 442-459.

Date

2023-01-01

Publisher

Taylor and Francis Ltd.

Subject

delamination factor; drilling attributes; fibre morphology; Surface roughness

Coverage

Babu N.S.M., Department of Mechanical Engineering, Dr. T Thimmaiah Institute of Technology, VTU, Kolar Gold Fields, India; Mathivanan N R., Department of Mechanical Engineering, PES University (PESU), Bangalore, India; Kumar M H., Department of Automobile Engineering, CHRIST University, Bangalore, India

Rights

Restricted Access

Relation

ISSN: 14484846

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1080/14484846.2020.1861756

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098496549&doi=10.1080%2f14484846.2020.1861756&partnerID=40&md5=8d4fee7ae96c8665d52527b10e7cfa63