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《Journal of Materials Engineering》 2004-05
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Research on Mechanism of Direct Metal Laser Sintering

GU Dong-dong, SHEN Yi-fu, PAN Yan-feng, XU Cheng-ting (Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)  
Sintering mechanism of the single-component/multi-component metal powders and the pre-alloyed powders during Direct Metal Laser Sintering (DMLS) process were analyzed. The material properties such as surface tension, viscosity, particle size and its distribution, and absorbance/ reflectivity together with the processing variables such as laser parameters, layering thickness of powders, atmospheric control, bed pre-heating temperature, and sintering assisted material, which affect sintering and densification of DMLS-processed parts, were discussed. The further directions of the research method in DMLS were addressed.
【Fund】: 国家自然科学基金委员会 -中国工程物理研究院联合基金资助项目 (1 0 2 76 0 1 7)
【CateGory Index】: TF124
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