Circular manufacturing of binder jetting additive parts from Ti-6Al-4 V machining chips

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology Pub Date : 2025-01-01 DOI:10.1016/j.cirp.2025.03.037

Debajyoti Bhaduri , Karan A. Baramate , Soumya Gangopadhyay , Thomas E. Davies

引用次数: 0

Abstract

The viability of using ball milled (BM) Ti-6Al-4V machining chips for fabricating parts by binder jetting (BJT) additive manufacturing is reported. The built parts’ density, roughness, microhardness and compressive strength are compared with BJT parts made from gas atomised (GA) powder. Sintered BM and GA parts exhibit comparable relative density (93–95 %), while microhardness of the former is almost twice of the latter. Equiaxed grains with greater β-phase fraction are observed in the BM parts’ microstructure. The BM compression test pieces exhibit brittle fracture due to greater strain hardening of the BM particles, compared to the plastic deformation of the GA specimens.

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用ti - 6al - 4v加工芯片循环制造粘结剂喷射增材件

报道了采用球磨（BM） Ti-6Al-4V加工芯片制造粘结剂喷射（BJT）增材制造零件的可行性。将所制备零件的密度、粗糙度、显微硬度和抗压强度与由气体雾化（GA）粉末制成的BJT零件进行了比较。烧结BM和GA零件具有相当的相对密度（93 - 95%），而前者的显微硬度几乎是后者的两倍。在BM零件的组织中观察到具有较大β相分数的等轴晶粒。与GA试样的塑性变形相比，BM压缩试样表现出脆性断裂，这是由于BM颗粒的应变硬化程度更高。

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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来源期刊

Cirp Annals-Manufacturing Technology 工程技术-工程：工业

CiteScore

7.50

自引率

9.80%

发文量

137

审稿时长

13.5 months

期刊介绍： CIRP, The International Academy for Production Engineering, was founded in 1951 to promote, by scientific research, the development of all aspects of manufacturing technology covering the optimization, control and management of processes, machines and systems. This biannual ISI cited journal contains approximately 140 refereed technical and keynote papers. Subject areas covered include: Assembly, Cutting, Design, Electro-Physical and Chemical Processes, Forming, Abrasive processes, Surfaces, Machines, Production Systems and Organizations, Precision Engineering and Metrology, Life-Cycle Engineering, Microsystems Technology (MST), Nanotechnology.