Research Article Experimental Investigation on the Average Surface Roughness (Ra) of AlSi10Mg Alloy Manufactured by Laser Powder Bed Fusion Method Mohamad Reda A. Refaai , 1 D. Prakash, 2 Jaya Christiyan K G, 3 DVSSSV Prasad, 4 E. Archana, 5 and Agegnehu Shara Shata 6 1 Department of Mechanical Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Alkharj 16273, Saudi Arabia 2 Centre for Excellence in Energy and Nano Technology, Department of Mechanical Engineering, S.A. Engineering College, Chennai 77, Tamil N adu, India 3 Department of Mechanical Engineering, M S Ramaiah Institute of Technology, Bengaluru, Karnataka 560054, India 4 Department of Mechanical Engineering, Aditya College of Engineering, Surampalem, Andhra Pradesh 533437, India 5 Department of Computer Science Engineering, Panimalar Institute of Technology, Chennai, Tamil Nadu 600123, India 6 Faculty of Mechanical Engineering, Arba Minch Institute of Technology, Arba Minch University, Ethiopia Correspondence should be addressed to Mohamad Reda A. Refaai; refaai.mraworks@yahoo.com Received 10 April 2022; Accepted 4 May 2022; Published 7 July 2022 Academic Editor: K. Raja Copyright © 2022 Mohamad Reda A. Refaai et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. AlSi10Mg alloy is an extensively utilised material having good mechanical qualities. e laser powder bed fusion procedure has been applied for fabricating the aluminium alloy (AlSi10Mg) plates in this research. Different exposure periods and scan techniques were applied in this work to measure the average roughness. Results demonstrate that the energy density grew and roughness reduced at first and then improved. Furthermore, there were considerable differences in roughness throughout the created faces. At 125 J/mm 3 and 180 J/mm 3 , excellent surface quality was attained. By this experiment, it was noticed that the direction of scan, wiper movement, and gas flow are the key parameters. 1. Introduction Since 1985, additive manufacturing of metals and alloys has attracted researchers and industrial experts. Huge efforts have been made to prove several aspects of this metal production procedure, including the technological aspect [1], the metallurgical aspect [2], and the design aspect [3]. Laser powder bed fusion, sometimes known as laser fusion, is a technique that uses lasers to fuse powders in a bed. SLM has become one of the most used methods of laser melting [4]. In real-time practice, the laser bed fusion method has been used in the production of a number of products such as steel [5], titanium [6], nickel [7], and aluminium alloys which are some of the real-time examples. e capacity to manufacture unique components without the use of part- specific equipment is one of the advantages of LPBF tech- nology. Laser powder bed fusion is a well-known innovative technology for developing and manufacturing high-per- formance components for aerospace and automotive ap- plications [8]. Aluminium alloys are attracting attention as construction material for parts with a high strength-to- weight ratio, low cost, and damage tolerance [9]. In com- parison to alloys such as stainless steel SS 316L, Inconel 718, and titanium alloy (Ti6Al4V) [5], the printability of alu- minium alloy is inferior [10]. Due to a slight change in phase 2 and solidus temperature near the two series, six series, and seven series of superalloys, only near-eutectic casting alloys like AlSi12 and AlSi10Mg are relatively simple to produce. Hindawi Advances in Materials Science and Engineering Volume 2022, Article ID 5874875, 5 pages https://doi.org/10.1155/2022/5874875