分析了纯金属粉末、预合金粉末和多组分金属粉末的选择性激光烧结成形机制;详细讨论了粉末的化学成分和物理性质,激光功率、扫描速率、扫描矢径、扫描间距等激光参数以及粉层厚度、粉床预热温度、保护气氛等工艺参数对成形机制的影响;并简要讨论了金属粉末选择性激光烧结技术的进一步研究方向.
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