Article: Parametric optimisation and experimental modelling of AWJ machining of GFRP composite Journal: International Journal of Materials Engineering Innovation (IJMATEI) 2024 Vol.15 No.3 pp.225 - 241 Abstract: Abrasive water jet machining (AWJM) is extensively employed for machining composites such as glass fibre-reinforced polymers (GFRP). AWJM is proven to be efficient and economical for material processing in manufacturing industries, in which a high-speed abrasive water jet is impinged on workpiece surface to erode material to get the desired shape. In this paper, experiments are performed to study the kerf taper (K<SUB align="right"><SMALL>t</SMALL></SUB>) in AWJ machined GFRP composite according to response surface methodology (RSM) based on the central composite design (CCD) approach. Water pressure (WP), traverse rate (TR), stand-off distance (SOD) and abrasive mass flow rate (AMFR) are considered to study their influence on kerf taper. Optimisation of parameters is executed by applying the desirability technique to minimise the kerf taper. In order to validate the results, confirmation tests have been carried out and which show less than 4.535% of error. Thereafter, an experimental model (second-order mathematical) is made for kerf taper by using RSM. From the analysis, it has been found that the predicted values are very close to the experimental results with a deviation of less than 4%. Inderscience Publishers - linking academia, business and industry through research

Title: Parametric optimisation and experimental modelling of AWJ machining of GFRP composite

Authors: Anil Kumar Dahiya; Basanta Kumar Bhuyan; Shailendra Kumar

Addresses: Department of Mechanical and Automation Engineering, Maharaja Agrasen Institute of Technology, Rohini, Delhi, India ' Department of Mechanical Engineering, Faculty of Engineering and Technology, Manav Rachna International Institute of Research and Studies, Faridabad, India ' Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, India

Abstract: Abrasive water jet machining (AWJM) is extensively employed for machining composites such as glass fibre-reinforced polymers (GFRP). AWJM is proven to be efficient and economical for material processing in manufacturing industries, in which a high-speed abrasive water jet is impinged on workpiece surface to erode material to get the desired shape. In this paper, experiments are performed to study the kerf taper (K_t) in AWJ machined GFRP composite according to response surface methodology (RSM) based on the central composite design (CCD) approach. Water pressure (WP), traverse rate (TR), stand-off distance (SOD) and abrasive mass flow rate (AMFR) are considered to study their influence on kerf taper. Optimisation of parameters is executed by applying the desirability technique to minimise the kerf taper. In order to validate the results, confirmation tests have been carried out and which show less than 4.535% of error. Thereafter, an experimental model (second-order mathematical) is made for kerf taper by using RSM. From the analysis, it has been found that the predicted values are very close to the experimental results with a deviation of less than 4%.

Keywords: glass fibre-reinforced polymers; GFRP; abrasive water jet machining; AWJM; kerf taper; optimisation; modelling; response surface methodology; RSM; desirability; central composite design; CCD; stand-off distance; SOD.

DOI: 10.1504/IJMATEI.2024.140196

International Journal of Materials Engineering Innovation, 2024 Vol.15 No.3, pp.225 - 241

Received: 19 Oct 2022
Accepted: 26 Jan 2023
Published online: 29 Jul 2024 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article

Title: Parametric optimisation and experimental modelling of AWJ machining of GFRP composite

Keep up-to-date