Surface Roughness Considerations in Design for Additive Manufacturing - A Literature Review [Elektronisk resurs]

• One often-cited benefit of using metal additive manufacturing (AM) is the possibility to design and produce complex geometries that suit the required function and performance of end-use parts. In this context, laser powder bed fusion (LPBF) is one suitable AM process. Due to accessibility issues and cost-reduction potentials, such ‘complex’ LPBF parts should utilise net-shape manufacturing with minimal use of post-process machining. The inherent surface roughness of LPBF could, however, impede part performance, especially from a structural perspective and in particular regarding fatigue. Engineers must therefore understand the influence of surface roughness on part performance and how to consider it during design. This paper presents a systematic literature review of research related to LPBF surface roughness. In general, research focuses on the relationship between surface roughness and LPBF build parameters, material properties, or post-processing. Research on design support on how to consider surface roughness during design for AM is however scarce. Future research on such supports is therefore important given the effects of surface roughness highlighted in other research fields. 

Ämnesord

Engineering and Technology  (hsv)

Materials Engineering  (hsv)

Manufacturing, Surface and Joining Technology  (hsv)

Teknik och teknologier  (hsv)

Materialteknik  (hsv)

Bearbetnings-, yt- och fogningsteknik  (hsv)

Produktinnovation  (ltu)

Product Innovation  (ltu)

Genre

government publication  (marcgt)

Indexterm och SAB-rubrik

Laser Powder Bed Fusion

Surface Roughness

Design for Additive Manufacturing (DfAM)

Design for X (DfX)

Design engineering

Design tactics and methods

Additive Manufacturing

3D/4D Printing