High Power Laser Beam Melting of Ti-6Al-4V on Formed Sheet Metal to achieve Hybrid structures

Ahuja B, Schaub A, Karg M, Schmidt R, Merklein M, Schmidt M (2015)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2015

Pages Range: 1-10

Conference Proceedings Title: Proc. of SPIE Vol. 9353, 93530X

Event location: The Moscone Center San Francisco California

URI: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2208237&resultClick=1

DOI: 10.1117/12.2082919

Abstract

Motivated by the desire to combine the advantages of two manufacturing concepts, namely Additive Manufacturing and sheet metal forming, the concept of hybrid processes emerged. Laser Beam Melting process with its characteristic layer by layer fabrication methodology has already been proved to be successful in fabricating fully dense 3D structures with micro sized Ti₆Al₄V powder. The presented research focuses on direct fabrication of Ti₆ Al₄V Additive Structures on a thin pre-formed Ti₆ Al₄V sheet metal substrate. In the state of the art Laser Beam Melting process, fabrication of solid structures is done on a support structure attached to a thick conventionally manufactured base plate. The state of the art process also uses a 200°C pre-heating of the fabrication platform in order to reduce the effect of heat induced stresses on the fabricated structures. Within the hybrid fabrication concept, 3D structures are directly fabricated on a thin sheet metal and the thermodynamic conditions are significantly different in comparison to the conventional process. The research aims at understanding the fundamental aspects of the interaction between the formed sheet metal and additive structure determines the corresponding mechanical characteristics. The interaction process during the fabrication exposes the alloy locally to non-optimum thermal cycles and the research therefore aims to understand the various influencing factors involved during the fabrication process. The system technology modifications required to achieve the aimed fabrication are also discussed in the presented research. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

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APA:

Ahuja, B., Schaub, A., Karg, M., Schmidt, R., Merklein, M., & Schmidt, M. (2015). High Power Laser Beam Melting of Ti-6Al-4V on Formed Sheet Metal to achieve Hybrid structures. In Henry Helvajian, Alberto Piqué, Martin Wegener, Bo Gu (Eds.), Proc. of SPIE Vol. 9353, 93530X (pp. 1-10). The Moscone Center San Francisco California, US.

MLA:

Ahuja, Bhrigu, et al. "High Power Laser Beam Melting of Ti-6Al-4V on Formed Sheet Metal to achieve Hybrid structures." Proceedings of the Laser 3D Manufacturing II, The Moscone Center San Francisco California Ed. Henry Helvajian, Alberto Piqué, Martin Wegener, Bo Gu, 2015. 1-10.

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