'The University of Texas at Austin, Bureau of Economic Geology'
Abstract
Direct Metal Laser Sintering (DMLS) has great potential in additive manufacturing
because it allows the production of full-density complex parts with the desired inner structure and
surface morphology. High temperature gradients, as a result of the locally concentrated energy
input, lead to residual stresses, crack formation and part deformations during processing or after
separation from the supports and the substrate. In this study, an X-ray diffraction technique and
numerical simulation were used for investigation of the residual stress in DMLS samples
fabricated from stainless steel 316L and Ti6Al4V alloy. Conclusions regarding directions and
values of stresses in DMLS objects are given.Mechanical Engineerin
