Three-dimensional printing technology based on metal spray and deposition

被引：2
|
作者：
Shan Z. [1 ]
Yang L. [1 ]
Liu F. [1 ]
Rong W. [1 ]
Liu Q. [1 ]
机构：
[1] State Key Laboratory of Advanced Forming Technology & Equipment, China Academy of Machinery Science & Technology, Beijing
来源：
Shan, Zhongde (shanzd@cam.com.cn) | 1600年 / Central South University of Technology卷 / 47期
关键词：
Sn-Bi alloy; Spray and deposition; Three-dimensional printing (3DP);
D O I：
10.11817/j.issn.1672-7207.2016.11.004
中图分类号：
学科分类号：
摘要：
A three-dimensional printing (3DP) method was demonstrated based on spray and deposition techniques to advance the development in China's manufacturing industry and to address the high cost and low efficiency problems of the existing metal 3D printing technologies. Using a 3D-computer aided drawing (CAD) model-driven computer numerical control (CNC) system, multi-species, small quantities, and complex metal parts can be manufactured directly using 3DP. Single-channel and single-layer forming experiments were conducted on Sn-Bi alloy to examine the influence of different nozzle apertures, nozzle speeds, aspiration speed, forming paths, and lapping rate on track forming and the surface morphology. The 3DP method was then used for block forming; the fracture morphology of the structure was evaluated. The results show that the single-channel forming track has better uniformity under the following conditions: a nozzle aperture of 0.6 mm, an aspiration speed of 10 mL/min, and a nozzle speed of 10 mm/s; When use the S-shaped path and the path overlap rate is 50%, the formed single-layer surface quality is better; The 3DP technology bases on spray and deposition allows for fast and efficient manufacture of metal parts. The forming efficiency is 50 cm3/h, which is two to three-fold that of existing metal 3DP technologies. © 2016, Central South University Press. All right reserved.
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页码：3642 / 3647
页数：5
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