Differential Scanning Calorimetry (DSC) traces for SLS Nylon-12 parts display two
distinct melt peaks, which have been related to the presence of both melted and crystallised
regions, and un-melted particle cores within the part. The relative proportions of each region are
defined by the term ‘Degree of Particle Melt’ (DPM), and have a large effect on the mechanical
properties of a part. This paper demonstrates that the % crystallinity of SLS Nylon-12 parts is
dependent on the DPM. Crucially, research has also shown that the trends for some tensile
properties (notably Tensile Strength and Young’s Modulus) change once full melting is
complete.Mechanical Engineerin