Review — Microstructure Control and Function Expression Using Metal 3D Additive Manufacturing in the Digital Age

Abstract

3D Additive Manufacturing is the heaven-sent child for Internet of Things (IoT) in the digital age, and is a process that can be used for customized design and production. In particular, metal Additive Manufacturing enables not only the fabrication of complex shapes but also the control of crystal orientation at the atomic level by locally melting and solidifying the metal material, thereby realizing high functionality of the product through simultaneous design of shape and materials properties. Therefore, it is expected to be applied in various social infrastructure fields including medical, energy-related, aerospace, and automotive, and also as a means of adding high value. In this review article, the new manufacturing concept that can be realized by metal Additive Manufacturing is introduced.

 

This Paper was Originally Published in Japanese in J. Japan Thermal Spray Soc. 58 (2021) 121–128. The title was changed due to the addition of “Review —”

Fig. 4 Shape and material property (structure/atomic arrangement) parameters that can be controlled using metal AM.