基于原位激光超声的d- am金属瑞利波过程监测

IF 1 4区材料科学 Q3 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Research in Nondestructive Evaluation Pub Date : 2022-09-03 DOI:10.1080/09349847.2022.2120652

C. Bakre, T. Meyer, C. Jamieson, A. Nassar, E. Reutzel, C. Lissenden

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引用次数: 2

摘要

将激光超声系统集成到定向能沉积增材制造(ed - am)腔室中，以非接触逐层模式使用瑞利波进行过程监控。沉积ti - 6al - 4v层，然后用对缺陷和材料不均匀性敏感的超声波瑞利波进行询问。详细介绍了一种新型的材料加工与监控一体化系统。过程参数被有意地改变，以产生缺陷和异常，以证明监控系统的某些能力。该激光器通过圆柱形透镜驱动宽带脉冲，或者通过狭缝掩模驱动窄带波包，这些波包在激光干涉仪的穿透传输模式下接收，尽管其表面具有固有的粗糙度。通过与参考状态的比较来检测缺陷。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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In-situ Laser ultrasound-based Rayleigh Wave Process Monitoring of DED-AM Metals

ABSTRACT A laser ultrasound system is integrated into a directed energy deposition additive manufacturing (DED-AM) chamber to use Rayleigh waves for process monitoring in a noncontact layer-by-layer mode. Layers of Ti-6Al-4 V are deposited and then interrogated with ultrasonic Rayleigh waves that are sensitive to flaws and material nonuniformities. The novel integrated material processing and monitoring system is described in detail. Process parameters are intentionally altered to create flaws and anomalies to demonstrate some capabilities of the monitoring system. The generation laser actuates either broadband pulses with a cylindrical lens or narrowband wave packets with a slit mask, which are received in through-transmission mode by a laser interferometer despite the inherent surface roughness. Flaws are detected through comparison to a reference state.

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来源期刊

Research in Nondestructive Evaluation 工程技术-材料科学：表征与测试

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Research in Nondestructive Evaluation® is the archival research journal of the American Society for Nondestructive Testing, Inc. RNDE® contains the results of original research in all areas of nondestructive evaluation (NDE). The journal covers experimental and theoretical investigations dealing with the scientific and engineering bases of NDE, its measurement and methodology, and a wide range of applications to materials and structures that relate to the entire life cycle, from manufacture to use and retirement. Illustrative topics include advances in the underlying science of acoustic, thermal, electrical, magnetic, optical and ionizing radiation techniques and their applications to NDE problems. These problems include the nondestructive characterization of a wide variety of material properties and their degradation in service, nonintrusive sensors for monitoring manufacturing and materials processes, new techniques and combinations of techniques for detecting and characterizing hidden discontinuities and distributed damage in materials, standardization concepts and quantitative approaches for advanced NDE techniques, and long-term continuous monitoring of structures and assemblies. Of particular interest is research which elucidates how to evaluate the effects of imperfect material condition, as quantified by nondestructive measurement, on the functional performance.