Abstract
AbstractMetal additive manufacturing (MAM) currently allows the production of mechanical components with technical specifications suitable for structural applications with a high level of complexity. Despite the most recent technological developments, additively manufactured parts may still lack the geometrical and dimensional accuracy as well as surface integrity required for precision mechanical assemblies and system reliability. These requirements often lead to post-processing operations through precision machining technologies. The present work focuses on the machinability study of 18Ni300 maraging steel obtained by laser powder bed fusion and its comparison with the conventional counterpart. Milling tests were carried out covering a wide range of cutting parameters, aiming at understanding their influence and comparing the obtained results in terms of cutting force, specific cutting pressure, roughness and chip morphology. In depth residual stresses have been measured for different operational and metallurgical conditions and their comparison was performed. A more significant effect of the feed parameter on the analysed data is noticed, particularly regarding the affected layer depth of the residual stresses due to cutting. Moreover, the higher mechanical strength of the additively manufactured alloy does not translate into an equivalent increase in the required average specific cutting pressure.
Funder
Plano de Recuperação e Resiliência (PRR), República Portuguesa through NextGeneration EU
Programa Operacional Competitividade e Internacionalização, and Programa Operacional Regional de Lisboa funded by FEDER and National Funds
Fundação para a Ciência e a Tecnologia
Publisher
Springer Science and Business Media LLC
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Software,Control and Systems Engineering
Reference29 articles.
1. Duro M (2022) Machinability of Maraging steel produced by LPBF based on milling tests. University of Porto, Faculty of Engineering University of Porto
2. Al-Rubaie KS, Melotti S, Rabelo A, Paiva JM, Elbestawi MA, Veldhuis SC (2020) Machinability of SLM-produced Ti6Al4V titanium alloy parts. J Manuf Process 57:768–786
3. Bai Y, Chaudhari A, Wang H (2020) Investigation on the microstructure and machinability of ASTM A131 steel manufactured by directed energy deposition. J Mater Process Technol 276:116410
4. Yang L, Patel KV, Jarosz K, Özel T (2020) Surface integrity induced in machining additively fabricated nickel alloy Inconel 625. Procedia CIRP 87:351–354
5. Turk C, Zunko H, Aumayr C, Leitner H, Kapp M (2019) Advances in maraging steels for additive manufacturing. BHM Berg-und Hüttenmännische Monatshefte 164(3):112–116
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