单金属粉末激光烧结过程中球化与烧结的关系研究

张强; 刘富荣; 陈继民; 牛奔; 谢正洋

doi:doi:10.3788/al20113104.0303

应用激光, 2011, 31 (4): 303, 网络出版: 2011-10-11

单金属粉末激光烧结过程中球化与烧结的关系研究

The Research of the Relation Between Balling Phenomenon and Single-Component Metal Powder Sintering by Laser Power

论文大纲

张强刘富荣陈继民牛奔谢正洋

作者单位

北京工业大学激光工程研究院, 北京 100124

激光直接金属烧结低功率低扫描速度球化现象 direct metal laser sintering low power low scanning speed balling phenomenon

摘要

采用激光直接金属烧结的方法, 对单一 316L不锈钢粉末进行一系列烧结实验。实验表明, 在较低功率和较低的扫描速度下, 无需粘结剂的辅助粉末也可以顺利的烧结成型且没有宏观的裂纹缺陷和明显的变形。阐述了单组分金属烧结成型的机理, 讨论了烧结 316L不锈钢粉末过程中出现的各种球化现象以及对烧结成型的影响, 明确了单组分金属烧结的研究思路与进一步研究的方向。

Abstract

A series of experiments was done by using the direct laser sintering method. The powder used in the research was single -component 316L stainless powder. It was found that in the low laser powder and low scanning speed there was no needof binder the process of laser sintering also could be done. There was no macro-crack and evident deformation in the specimen.In this article the machanism of the single -component metal powder laser sintering process was analysed. The effect of the balling phenomenon to the sintering process was studied. The further study direction was specificed in the ne xt research experiments.

参考文献

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张强, 刘富荣, 陈继民, 牛奔, 谢正洋. 单金属粉末激光烧结过程中球化与烧结的关系研究[J]. 应用激光, 2011, 31(4): 303. Zhang Qiang, Liu Furong, Chen Jimin, Niu Ben, Xie Zhengyang. The Research of the Relation Between Balling Phenomenon and Single-Component Metal Powder Sintering by Laser Power[J]. APPLIED LASER, 2011, 31(4): 303.

单金属粉末激光烧结过程中球化与烧结的关系研究

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