Article: A review: finishing technologies of parts made by metal powder-bed additive manufacturing Journal: International Journal of Manufacturing Research (IJMR) 2023 Vol.18 No.1 pp.1 - 27 Abstract: Metal powder-bed additive manufacturing (AM) is known to possess good application prospects in the aerospace, medical and other fields. However, the furnishing of the surface quality of the AM parts is poor, and post-processing is required to meet the high applicability. The finishing process is the main link in post-processing for high-performance AM parts. In this report, the applications of machining, laser polishing, chemical and electrochemical polishing, abrasive flow machining and other typical finishing techniques used in the finishing of metal powder-bed AM parts are reviewed. Additionally, the evolution of surface roughness, material removal and residual stress of workpieces with different materials, different manufacturing processes (SLM, EBM, etc.) and different structural forms during the finishing process were analysed. An efficient and precise finishing technology can obviously improve the surface quality of the AM metal parts, which can be of great significance for the diverse applications of AM parts and reduce the costs. [Submitted 14 October 2020; Accepted 18 February 2021] Inderscience Publishers - linking academia, business and industry through research

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Title: A review: finishing technologies of parts made by metal powder-bed additive manufacturing

Authors: Li Liu; Guilian Wang; Jie Liu; Minke Cai

Addresses: Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, Tianjin University of Technology, Tianjin, 300384, China ' Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, Tianjin University of Technology, Tianjin, 300384, China ' Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, Tianjin University of Technology, Tianjin, 300384, China ' Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, Tianjin University of Technology, Tianjin, 300384, China

Abstract: Metal powder-bed additive manufacturing (AM) is known to possess good application prospects in the aerospace, medical and other fields. However, the furnishing of the surface quality of the AM parts is poor, and post-processing is required to meet the high applicability. The finishing process is the main link in post-processing for high-performance AM parts. In this report, the applications of machining, laser polishing, chemical and electrochemical polishing, abrasive flow machining and other typical finishing techniques used in the finishing of metal powder-bed AM parts are reviewed. Additionally, the evolution of surface roughness, material removal and residual stress of workpieces with different materials, different manufacturing processes (SLM, EBM, etc.) and different structural forms during the finishing process were analysed. An efficient and precise finishing technology can obviously improve the surface quality of the AM metal parts, which can be of great significance for the diverse applications of AM parts and reduce the costs. [Submitted 14 October 2020; Accepted 18 February 2021]

Keywords: finishing technologies; additive manufacturing; metal parts; powder-bed.

DOI: 10.1504/IJMR.2023.129299

International Journal of Manufacturing Research, 2023 Vol.18 No.1, pp.1 - 27

Received: 14 Oct 2020
Accepted: 18 Feb 2021
Published online: 06 Mar 2023 *

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Title: A review: finishing technologies of parts made by metal powder-bed additive manufacturing

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