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| Research progress of combustion assisted materials and technologies for aluminium powder |
| LI Youyu 1，YU Li2，GAO Yang3 |
| （ 1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing
100083, China;2. College of Science, Xichang University, Xichang 615000, China; 3. LB Group CO., LTD,
Panzhihua 617100, China） |
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Abstract Titanium alloy has the characteristics of high strength, lightweight, and high temperature resistance,
making it a promising aerospace structural material. The traditional mechanical manufacturing process is difficult
and costly, which limits the application of titanium alloys. Additive Manufacturing (AM), as an emerging advanced
manufacturing technology, can produce metal components with high three-dimensional accuracy through layer by
layer machining, providing near net shape machining for titanium alloys. This article first introduces the preparation
technology of spherical titanium alloy powder, including Plasma Rotating Electrode Atomization Process
(PREP), Electrode Induction Gas Atomization (EIGA), Plasma Atomization (PA), and Plasma Spheroidization
(PS). The preparation technology and advantages and disadvantages of four spherical titanium alloy powders are
compared, as well as their applications in aviation additive manufacturing, including Laser Selective Melting
(SLM). The application characteristics and development trends of different titanium alloy powder preparation technologies
in aviation additive manufacturing are summarized, such as Electron Beam Selective Melting (EBSM)
and Laser Melting Deposition (LMD). It is pointed out that the key to the future development of spherical titanium
alloy additive manufacturing is the preparation of low gap titanium powder. High precision, high efficiency and
large scale of additive manufacturing equipment will be the future development trend.
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Received: 09 March 2023
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2024, Vol. 34 
