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激光选区熔化成型过程参数及缺陷影响分析
Analysis of Process Parameters and Defects in Selective Laser Melting
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- DOI:
- 作者:
- 马大卫
MA Dawei
- 作者单位:
- 上海飞机设计研究院 飞机结构强度工程技术所,上海 201210
Structure and Stress Division, Shanghai Aircraft Design and Research Institute, Shanghai 201210, China
- 关键词:
- 激光技术;成型能力;激光选区熔化;工艺参数
laser technique; forming quality; selective laser melting (SLM); process parameters
- 摘要:
- 激光选区熔化(SLM)成型过程是一个逐层累积的过程,结构按照单道扫描(线)、单层扫描(面)、块体成型
(体)的顺序依次打印。 其中涉及的工艺参数众多,有激光固有参数、扫描策略参数、支撑结构参数等,且相互耦合影响,
参数的好坏直接影响零件的最终力学性能及尺寸精度。 本文对 SLM 成型过程中的参数及缺陷进行了系统性的分析,为
基于 SLM 的复杂零件的设计制造提供整体研究思路。
Selective laser melting (SLM) is a process of layer by layer accumulation. The structure is printed in the order of single channel scanning (line), single layer scanning (surface) and block forming (bulk). There are many process parameters involved, such as laser inherent parameters, scanning strategy parameters, support structure parameters, etc., and they are mutually coupled. The quality of the parameters directly affects the final mechanical properties and dimensional accuracy of the parts. In this paper, the parameters and defects in the forming process of SLM are sy