Effect of the threaded nozzle on delamination and surface texture of PEEK CF30 composite machined by abrasive jet
ISSN: 1708-5284
Article publication date: 8 July 2021
Issue publication date: 5 December 2022
Abstract
Purpose
The purpose of this study is to bring out the machining characteristics of abrasive jet machining on carbon fibre reinforced thermoplastic composites utilized in aerospace and biomedical applications. Biocompatibility materials such as carbon fibres and polyether thermoplastics, like polyether ether ketone (PEEK) are widely used in trauma and orthopaedic surgery. Due to the heterogeneity, layered construction of reinforcing phase bonds with a resin matrix and abrasiveness of the reinforcing fibre, traditional drilling of carbon fibre-reinforced composites (CFRPs) are always challenging task.
Design/methodology/approach
An investigation is carried out using abrasive jet machine for drilling PEEK filled with 30 Wt.% carbon fibre (CF 30) using threaded and unthreaded nozzle to study the effect of abrasive jet process variables on surface roughness (Ra) and delamination factor (DF). Pressure (P) and stand-off distance (SOD) as important technological abrasive jet factors were evaluated. It is found that higher abrasive jet pressure and minimum SOD maybe selected to achieve minimum delamination.
Findings
The study further reported that the threaded nozzle minimized the surface roughness by 43% and delamination factor up to 12%.
Originality/value
This study of experimenting and observing the machining characteristics of CF30 by using a threaded nozzle is being tried for the first time and the results are deliberated.
Keywords
Citation
Balasubramanian, M. and Madhu, S. (2022), "Effect of the threaded nozzle on delamination and surface texture of PEEK CF30 composite machined by abrasive jet", World Journal of Engineering, Vol. 19 No. 6, pp. 755-765. https://doi.org/10.1108/WJE-03-2021-0186
Publisher
:Emerald Publishing Limited
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