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Current surface issues in additive manufacturing
Author(s) -
Magnien Julien,
Cosemans Patrick,
Nutal Nicolas,
Kairet Thomas
Publication year - 2020
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201900154
Subject(s) - stacking , raw material , surface roughness , materials science , surface (topology) , surface finish , process engineering , mechanical engineering , quality (philosophy) , engineering drawing , composite material , engineering , geometry , mathematics , physics , chemistry , organic chemistry , nuclear magnetic resonance , quantum mechanics
Additive manufacturing (AM), the 30‐year‐old method, to make parts by stacking thin layers of a raw material‐like powder is still in evolution. Among the drawbacks of AM, surface quality is often reported, especially when the raw material is powder. The roughness, R a, can vary between 10 and 20 µm, with a peak‐to‐valley distance which can reach 0.2 mm, depending on the AM technology. This has an impact on mechanical properties, especially on fatigue. One of the approaches to attain the surface requirements is dedicated post‐treatment. The present paper investigates the origin of AM roughness to highlight the need for suitable post‐treatment.