Enhancing surface finish and increasing fatigue resistance of Ti6Al4V produced through electron beam melting via chemical machining

IF 3.4 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Mechanical and Materials Engineering Pub Date : 2025-03-31 DOI:10.1186/s40712-025-00241-8

Sagarkumar J. Aswar, Rahul R. Chakule, Devakant Baviskar, Nilesh H. Khandare, Yugesh A. Kharche, Deepak M. Deshmukh, Mangesh Y. Dakhole, Vishwanatha S, Adem Abdirkadir Aden

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Abstract

The surging demand for innovative components in the aerospace, biomedical, and automotive sectors has prompted extensive research on the 3D printing of titanium parts. Among various additive manufacturing techniques, electron beam melting has attracted increased attention owing to its high-density components produced per unit of time. However, the surface finishing of powder bed-based additive manufacturing methods is generally poor; that is, their mechanical performance is wanting and does not meet all the industrial standards. Higher surface finishing can be achieved by post-processing. The quality of the surface, having a substantial impact on the fatigue behavior, will give insights into the influence of chemical machining, and it cannot be ignored for an experimental trial. The rotating fatigue beam testing method was selected for this experimental campaign because of its inherent capability to stress sample surfaces more uniformly, emphasizing the effects of surface finishing.

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化学加工电子束熔炼Ti6Al4V提高表面光洁度和抗疲劳性能

航空航天、生物医学和汽车领域对创新部件的需求激增，促使人们对钛零件的3D打印进行了广泛的研究。在各种增材制造技术中，电子束熔化因其单位时间内生产的高密度组件而受到越来越多的关注。然而，基于粉末床的增材制造方法的表面光洁度普遍较差；也就是说，它们的机械性能不理想，不符合所有的工业标准。通过后处理可以实现更高的表面光洁度。表面质量对疲劳行为有很大的影响，这将使人们深入了解化学加工的影响，这是实验试验中不可忽视的。本实验选择旋转疲劳梁测试方法，因为它具有更均匀地对样品表面施加应力的固有能力，强调表面精加工的影响。

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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