Densification, surface morphology, microstructure and mechanical properties of 316L fabricated by hybrid manufacturing

作者：Yang, Yuying; Gong, Yadong^*; Qu, Shuoshuo; Rong, Yulong; Sun, Yao; Cai, Ming

来源：International Journal of Advanced Manufacturing Technology, 2018, 97(5-8): 2687-2696.

DOI：10.1007/s00170-018-2144-1

• Hybrid manufacturing
• Heat treatment
• Densification
• Microstructure
• Surface morphology
• Mechanical properties
• Additive/subtractive manufacturing

In recent years, additive manufacturing (AM) has been developed for industrial applications due to its superior performance, such as in building complex parts, which are especially difficult to build when using traditional methods. However, the surface quality, and dimensional and geometric accuracies of AM parts do not exceed conventionally machined parts, which hinders the AM applications. To overcome these limitations, hybrid manufacturing (HM) technology, which combines AM and subtractive manufacturing (SM) technologies in a single workstation has received a great deal of attention in academic and industrial circles to enhance material utilization, part complexity and quality control when producing functional parts. In this paper, we present research achievements using ANSI 316L stainless steel parts via the HM process and analysis of its surface morphology and microstructural characteristics, densification behaviour and mechanical properties. Specimens before and after heat treatment were analysed and compared. The study also dealt with material characterization via the Archimedes method, scanning electron microscopy (SEM), X-ray polycrystalline diffractometer (XRD) and tensile measurements. This study provides a valuable guide to determining the effectiveness of the HM process and its use when producing engineering parts.

• 出版日期2018-7
• 单位东北大学