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Effect of the hatch spacing in laser powder bed fusion on the AlSi7Mg aluminum alloy cutting forces and surface finish after turning
GHINATTI Edoardo, BERTOLINI Rachele, GHIOTTI Andrea, BRUSCHI Stefania
download PDFAbstract. Applying additive manufacturing (AM) technologies in fabricating aluminum alloy automotive components can significantly enhance vehicle light-weighting through optimized design. By varying the AM process parameters, the resultant microstructure can be substantially altered, even post-heat treatment. Given that machining operations remain essential in many applications, understanding the impact of the AM parameters on the machining performances is vital. This paper explores how hatch spacing in laser powder bed fusion (LPBF) process affects the machinability of the AlSi7Mg aluminum alloy, in terms of cutting forces and machined surface roughness, providing a correlation with the microstructure induced by both the AM and heat treatment steps. In particular, the research reveals that the larger the hatch spacing the smoother the machined surface, underlining the critical role of this LPBF parameter in determining the final surface quality.
Keywords
Aluminum Alloy, Laser Powder Bed Fusion, Machining
Published online 4/24/2024, 9 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: GHINATTI Edoardo, BERTOLINI Rachele, GHIOTTI Andrea, BRUSCHI Stefania, Effect of the hatch spacing in laser powder bed fusion on the AlSi7Mg aluminum alloy cutting forces and surface finish after turning, Materials Research Proceedings, Vol. 41, pp 1907-1915, 2024
DOI: https://doi.org/10.21741/9781644903131-211
The article was published as article 211 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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