Surface Quality Analysis in Selective Laser Melting with CoCrMo Powders

Yurivania Pupo; Lidia Sereno; Joaquim Ciurana

doi:10.4028/www.scientific.net/MSF.797.157

Paper Titles

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Electrolyte Effect on the Surface Roughness Obtained by Electropolishing of AISI 316L Stainless Steel
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Energy Efficient Heat Treatment Process Design and Optimisation
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Parametric Modeling and Compensation of Layer Manufacturing Machines
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Surface Quality Analysis in Selective Laser Melting with CoCrMo Powders
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Technical Evaluation of Structural Adhesive Joints under Adverse Operation Conditions
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HomeMaterials Science ForumMaterials Science Forum Vol. 797Surface Quality Analysis in Selective Laser...

Surface Quality Analysis in Selective Laser Melting with CoCrMo Powders

Abstract:

Selective laser melting is an additive manufacturing technology mainly applied to metal powders. Objective of this work is to evaluate the surface quality of CoCrMo layer. A full factorial design of experiments was used. The experiment was performed in order to produce a standardized analysis of layer quality, which could then be compared with other standards. A decrease in scanning speed and scanning space provide better surface quality. The optimal values of energy density are between 89 and 100 J/mm3 at 50% of overlapping. At these values of energy density, Rt values are low which means that powder has melt uniform. Skewness tends to zero and the degree of kurtosis is closer to 3, which shows that the layer has good surface finish. Results shows good quality surface for 3D manufacturing parts.

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Periodical:

Materials Science Forum (Volume 797)

Pages:

157-162

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.797.157

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Online since:

June 2014

Authors:

Yurivania Pupo, Lidia Sereno, Joaquim Ciurana*

Keywords:

Energy Density, Metallic Powder Surface Quality, Overlapping, Selective Laser Melting (SLM)

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