Research on Forming Technology of Electron Beam Selective Melting for Ti-6Al-4V Powder

Abstract:

Electron beam selective melting (EBSM) has many advantages for the titanium alloy parts manufactured, therefore, the material characteristics, scanning methods and the tensile properties of Ti-6Al-4V by EBSM are studied in this paper. Aimed at the lower density, poorer electric and heat conductibility of Ti-6Al-4V, three scanning paths have been developed: reverse scanning, interlaced reverse and orthogonal scanning, and the surface of forming part made by the above three scanning methods is smooth and no bulge. The tensile specimens of Ti-6Al-4V are produced by EBSM, the average of ultimate tensile strength and the fracture elongation of the specimen are 1080MPa and 10.10%, respectively.

• Periodical: Applied Mechanics and Materials (Volumes 44-47)
• Pages: 2778-2782
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.44-47.2778
• Online since: December 2010
• Authors: Hai Bo Qi, De Liang Ren, Ming Jun Zheng
• Keywords: Electron Beam Selective Melting (EBSM), Scanning Method, Tensile Performance, Ti-6Al-4V Alloy Powder

References

[1] V.N. Moiseyev: Titanium alloys (Aerospace industry press, Beijing 2008), in Chinese.

[2] X.Y. Zhang, Y.Q. Zhao and C.G. Bai: Titanium alloys and Applications (Chemical industry press, Beijing 2005), in Chinese.

[3] C. D, H. O and W. H: Rapid Prototyping Journal, Vol. 10 (1) (2004), p.35.

[4] H.B. Qi: Study on rapid manufacturing technology of electron beam selective melting (Tsinghua University, Beijing 2006), in Chinese.

[5] H.B. Qi, Y.N. Yan, F. Lin and Z.G. Yan: Journal of Tsinghua university (Science & Technology), Vol. 45 (8) (2005), p.1012.

[6] H.B. Qi, Y.N. Yan, F. Lin, W. He and H.R. Zhang: Journal of Engineering Manufacture, Vol. 221 (B12) (2007), p.1685.

[7] J.D. Han: Research on scanning technology of electron beam selective melting for titanium alloy powder (Tsinghua University, Beijing 2008), in Chinese.