Chemical vapour treatment for enhancing the surface finish of PLA object produced by fused deposition method using the T
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Chemical vapour treatment for enhancing the surface finish of PLA object produced by fused deposition method using the Taguchi optimization method Subham Sekhar Panda1 · Rimpy Chabra1 · Sajan Kapil2 · Virendra Patel1 Received: 19 October 2019 / Accepted: 10 April 2020 © Springer Nature Switzerland AG 2020
Abstract In this study, the effect of process parameter and various post-processing techniques on surface roughness of PLA object produced by fused deposition method is investigated. The economical and versatile method with the proper design of the experiments to reduce the surface roughness is our objective. The PLA is selected as the workpiece material, a biodegradable material which is vastly used in medical implants, where surface roughness is a major issue. The various post-processing technique is analyzed, and the parameter optimization is taken into consideration. Post-processing technique like chemical treatment, vapour smoothing, sanding and polishing is carried out. Taguchi design of the experiment is also used to optimize the parameter that affects the targeted surface roughness. Taguchi L9 orthogonal array is used to organize the different parameters, and Minitab software is used to determine the optimum parameter setting. The dichloromethane chemical is found to be the best chemical for dissolving the PLA material and reducing the layer lines so that the surface roughness can be reduced. The final results confirmed that the chemical vapour treatment using dichloromethane and the Taguchi method sufficient to improve the surface roughness. Keywords Fused deposition method · Taguchi optimisation · Chemical vapour treatment · Poly lactic acid Abbreviations FDM Fused deposition modelling ITER International thermonuclear experimental reactor CTTC Central tool room and training centre CAD Computer-aided design S/N Signal to noise ratio ANOVA Analysis of variance PLA Poly lactic acid ABS Acrylonitrile butadiene styrene DCM Dichloromethane
1 Introduction In recent years, global markets have led to a fundamental change in product development. The improvement of products with the highest quality and lowest cost and their production in the shortest time at a reasonable price, within limits of safety and other criteria, are necessary to remain competitive in global manufacturing. An essential part of product development is the engineering design process, which begins by identifying a need and concludes with a ready-to-manufacture prototype [1]. Today it is very predominant to guide a product from concept to market rapidly and inexpensively. The viewpoint of industries has changed from traditional product development methodology to rapid prototyping
* Rimpy Chabra, [email protected] | 1Department of Mechanical Engineering, Institute of Technical Education and Research, Siksha O Anusandhan (Deemed to be University), Khandagiri, Bhubaneswar, Odisha 75103, India. 2Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India. SN Applied Sciences
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