Tohoku Univ. Technology : Metal additive manufacturing equipment：T25-022
To suppress a smoke phenomenon and use a powder bed system more effectively.
The technology to suppress the smoke phenomenon in the metal lamination process of powder bed system is attracting attention. Since the smoke phenomenon inhibits the beam irradiation, the melting of the metal powder becomes insufficient, and the deterioration of the laminated product is caused. To solve this problem, countermeasures such as temporary sintering have been taken, but they are not sufficient, and research and development are continuously carried out. As a result of repeated research focusing on the fact that each metal powder is covered with a thin oxide film, the present invention devised an apparatus capable of suppressing the smoke phenomenon more effectively than ever before. Since the smoke phenomenon is mainly caused by the electrification of each metal powder by the irradiation beam, the problem was solved by pretreating the powder bed. As a result, development of a laminated molding apparatus capable of effectively suppressing the smoke phenomenon and development of an auxiliary apparatus mountable to an existing apparatus are expected.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
