Quantitative analysis of surface treatment to enhance surface finish and mechanical characteristics of ABS parts
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Quantitative analysis of surface treatment to enhance surface finish and mechanical characteristics of ABS parts Sagar Baligidad1 · Vijayananda Kaup1 · A. C. Maharudresh1 · G. Chethan Kumar1 · K. Elangovan2 Received: 26 April 2020 / Accepted: 23 July 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Lack of surface integrity and porosity are the key factors limiting the growth of fused deposition modelling (FDM) method. The method requires an efficient post processing technique which is consistent, controllable and predictable to improve surface finish without affecting geometrical and mechanical properties. This work aims to setup a novel method to treat FDM parts to improve surface quality as well as heat absorption, which in turn makes it suitable for high temperature applications. In this process, Acrylonitrile Butadiene Styrene (ABS) parts are treated with montmorillonite nanoclay via acetone bathing. The parameters like layer thickness, nanoclay content and immersion time were considered for the investigation. The roughness is measured based on the deviation from the least square plane fixed to the computed surface topography data sets, which allows to investigate the influence of smoothing parameters. Further, parts have been investigated for thermal and mechanical properties to predict optimal smoothing parameters. Results showed the proposed surface treatment method could effectively reduce the roughness of the ABS parts. In addition, nanoclay coating showed remarkable effect on the ultimate tensile strength (UTS), reflection of heat radiation resulting in the reduction of heat absorption. Keywords Fused deposition modelling · Surface treatment · Tensile strength · Surface roughness · ABS
1 Introduction Layer-based Manufacturing (LM) has gained considerable attention to craft 3D parts of complex structure with assorted properties [1, 2]. Subtractive manufacturing technologies presently command higher industrial application and acceptance due to their amenability to mass production. However, when LM is combined with subtractive manufacturing, the cost involved in reverse engineering, prototyping, product development, design confirmation and manufacturing of parts can be minimized [3, 4]. The recent times have witnessed a wider adoption and acceptance of LM technologies by both large and small industrial players specialized in producing a variety of products and commodities [5]. Reportedly, annual global sales of materials and services of LM systems have increased to 33% in the span of 10 years
* Sagar Baligidad [email protected] 1
CMR Institute of Technology, Bengaluru, India
Er. Perumal Manimekalai College of Engineering, Hosur, Tamil Nadu, India
2
[6]. The present market is looking for a swift solution, fast process, low cost, and is being compelled to use existing LM methods like 3D Printing, FDM, STL, and SLS etc., which have the capability to fabricate high quality, improved mechanical properties, and low-cost functional parts. Also, they are suitable to process
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