Abstract
In addition to the surface quality and appearance, the near surface scanning strategy has an influence on the porosity beneath the surface of LBPF manufactured 316L parts. Furthermore, this porosity will influence the fatigue life of the part which will be pronounced on a flexural bending type of fatigue. In this work, the effect of scanning strategy to the edge porosity was analyzed by optical microscopy and the effect on the fatigue life was measured with flexural bending tests. The results showed that the edge porosity had a clear impact on the fatigue life and the fatigue limit was improved by 30 % to 250 MPa by a simple parameter change.
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