Distortion minimization of laser‐processed components through control of laser scanning patterns
作者： K. Dai , L. Shaw
DOI: 10.1108/13552540210451732
关键词:
摘要: Residual thermal stresses and distortion are frequently present in the parts built using a layer‐by‐layer solid freeform fabrication techniques assisted with moving laser source. This study uses finite element analysis to investigate effect of scanning patterns on residual distortion. It is shown that out‐of‐plane layer, processed by beam can be minimized proper selection pattern. A pattern having changes its direction 90° at every turn lead cancellation concave upward downward distortions. As result this cancellation, very small plate. also found mainly caused transient rather than stresses.
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