金属粉末床熔融工艺在线监测技术综述

摘要/Abstract

摘要： 金属粉末床熔融技术是近年来迅速发展起来的一种先进制造技术,在航空航天、生物医疗、汽车等领域获得广泛关注,但工艺可重复性差和稳定性不足等缺点限制了该技术的进一步工业应用。在线监测技术能够及时探测成形状态和缺陷,消除上述工艺问题对该技术发展的限制。从铺粉过程监测、粉末床检测、熔融过程监测和熔融层检测等方面综述了金属粉末床熔融工艺在线监测技术的研究现状,分析了现有技术的不足,总结了其今后的发展趋势。

关键词: 金属增材制造, 粉末床熔融, 在线监测, 研究现状, 发展趋势

Abstract: The metal powder bed fusion was an advanced and promising manufacturing technique which was rapidly developed in recent years. The extensive attentions in the fields of aerospace, biomedicine and automotive were obtained, but shortcomings such as poor process repeatability and insufficient stability were still restricting its further industrial applications. On-line monitoring provided an effective solution for these obstacles by monitoring process statuses and defects in time. The research statuses of on-line monitoring for metal powder bed fusion were reviewed from the aspects of powder recoating monitoring, powder bed inspection, building process monitoring and deposited layer inspection. Then, limitations of present online monitoring techniques were pointed out, and some topics to be further studied were predicted.

Key words: metal additive manufacturing, powder bed fusion, on-line monitoring, research status, development trend

中图分类号:

V216
TP216

赵德陈1,2,3;林峰1,2,3. 金属粉末床熔融工艺在线监测技术综述[J]. 中国机械工程.

ZHAO Dechen1,2,3;LIN Feng1,2,3. A Review of On-line Monitoring Techniques in Metal Powder Bed Fusion Processes[J]. China Mechanical Engineering.

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