Optimisation of paint removal operation using waterjet cleaning process

Mat Nawi, Mohd Nazir and Husin, Hafiz and Gebremariam, M. A. and Azhari, Azmir (2021) Optimisation of paint removal operation using waterjet cleaning process. In: 4th International Manufacturing Engineering Conference (IMEC 2019) & 5th Asia Pacific Conference of Manufacturing System (APCOMS 2019), 21-22 August 2019, The Everly Hotel, Putrajaya, Malaysia.

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Abstract

The need of cleaning automotive paint without secondary pollution has recently become a major concern globally. The waterjet technology has extended its application to include surface treatment, machining, cleaning and cutting of materials. Plain waterjet is frequently used for cleaning since its offers environmentally friendly concept which results near zero pollution to the surroundings. This research aims to analyse and optimise the use of multiple passes in waterjet cleaning process for removal of automotive paint using response surface method (RSM). The effect of surface roughness (Ra) and its topography were analysed. RSM, analysis of variance (ANOVA), fractional factorial at two levels were utilized to optimize the plain waterjet process parameters for effective cleaning of paint. It was found that the lateral feed and pressure were the most significant control factors in influencing the cleaning performance criteria. Mathematical model was developed using linear regression analysis to predict the surface roughness in terms of cleaning parameters of plain waterjet process. The model had successfully predicted the Ra of the plain waterjet cleaned automotive parts within the limit of this study. The recommended optimal parametric combinations for better Ra were found to be waterjet pressure of 34.0 MPa, traverse rate of 500 mm/min, standoff distance of 10 mm, number of passes of 1 and lateral feed of 0.6 mm.

Item Type:	Conference or Workshop Item (Slide Presentation)
Uncontrolled Keywords:	Waterjet cleaning · Paint removal · Multiple jet passes · Surface roughness · RSM
Subjects:	T Technology > T Technology (General) > T55.4 Industrial engineering.Management engineering. > T59.7 Human engineering in industry. Man-machine systems T Technology > TA Engineering (General). Civil engineering (General) > TA170 Environmental engineering. Sustainable engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Centre for Foundation Studies
Depositing User:	Br MOHD NAZIR MAT NAWI
Date Deposited:	26 Dec 2022 14:44
Last Modified:	18 Jan 2023 15:34
URI:	http://irep.iium.edu.my/id/eprint/101994

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