Optimizing the structure accuracy by changing the scanning strategy using selective laser melting

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Abstract

The roughness of both side and top surface and geometric tolerance affected by the scanning strategy using selective laser melting (SLM) processed by Ti6Al4V alloy were systematically studied. The specimens with a special shape were designed and produced by SLM to investigate the influence of dimension and structure accuracy. The experimental results indicated that the roughness of side and top surface was governed by the scanning strategy, especially the side surface. It shows a significant change of the surface roughness when changing the scanning direction. Some of the geometric tolerance, such as flatness and straightness, were also affected by the scanning strategy. Then the dimension accuracy was researched and showed little variation when changing scanning strategy.

Keywords

Selective laser melting Ti6Al4V powder Scanning strategy Structure accuracy 

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Notes

Acknowledgements

This study is supported by the Ministry of Education’s Joint Fund for Pre-research Project.

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© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Mechanical EngineeringJiangnan UniversityWuxiPeople’s Republic of China
  2. 2.Additive Manufacturing Products Supervision and Inspection Center of Jiangsu ProvinceInstitution of Supervision and Testing on Product QualityWuxiPeople’s Republic of China

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