Effect of Processing Parameters on Thermal Phenomena in Direct Laser Metallic Powder Deposition |
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| Authors: | HU Weiwei KANG Jinwu HUANG Tianyou Key Laboratory for Advanced Materials Processing Technology of Ministry of Education |
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| Affiliation: | HU Weiwei KANG Jinwu HUANG Tianyou Key Laboratory for Advanced Materials Processing Technology of Ministry of Education,Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | Direct laser metallic powder deposition technique is widely used in manufacturing, part repairing, and metallic rapid prototyping. The ability to predict geometrical accuracy and residual stress requires an understanding of temperature distribution during the deposition process. This study presents a numerical model of three-dimensional transient heat transfer in a finite model heated by a moving laser beam. Thermal phenomena in the process were investigated. The complex solid-liquid problem and latent heat... |
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| Keywords: | laser direct deposition melt pool cross-section profile thermal field simulation |
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