Dependence of mechanical properties of polyamide components on build parameters in the SLS process

By B. Caulfield, P. McHugh, S. Lohfeld. 2007

597 citations recorded by the source corpus.

Abstract Customised properties of parts manufactured using the selective laser sintering process are achievable by variation of build parameters. The energy density, controlled by laser power, distance between scan lines and speed of the laser beam across the powder bed, all have a very strong influence on the density and the mechanical behaviour of the parts. The present paper investigates the influence of the energy density on physical and mechanical properties of parts produced using polyamide. Additionally, the effect of part orientation during the build is examined. Knowledge of the influence of these parameters allows one to establish trendlines which link build settings to resulting part properties, and hence to fabricate customised parts with predetermined properties.

Subfields: Automotive Engineering, Industrial and Manufacturing Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/004bbb46635896730281855410e791f97c6d0246

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In Automotive Engineering

In Industrial and Manufacturing Engineering

In Mechanical Engineering

Citations in the corpus

The status, challenges, and future of additive manufacturing in engineering (2015, unknown): “For instance, different build parameters in FDM [311] and SLS [312] processes result in different material properties of fabricated AM parts.”
Statistical analysis of dimensional accuracy in additive manufacturing considering STL model properties (2018, background): “[3] also documented that “role of the build orientation and parts dimensions may be more complicated than the influence of energy density.”
Advances in selective laser sintering of polymers (2022, background): “Caulfield et al [26] studied the influences of laser energy density and building orientation on the mechanical properties of SLS parts with the material PA, as shown in figure 15.”
Design Strategies for the Process of Additive Manufacturing (2015, background): “[6, 7] Fused Deposition Modelling (FDM) follows a different principle.”
Surface Modification of 3D Printed PLA Objects by Fused Deposition Modeling: A Review (2019, background): “In general, thermoplastics such as ABS, PLA [41–45], polyamide (PA) [46] and polycarbonate (PC) [47] are used as filaments in the 3D printers.”