2023 Fiscal Year Final Research Report
Additive manufacturing using wire and electric power
| Project/Area Number |
21K03802
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 18020:Manufacturing and production engineering-related
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| Research Institution | Saitama University |
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Principal Investigator |
Abe Takeyuki 埼玉大学, 理工学研究科, 准教授 (60756469)
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| Co-Investigator(Kenkyū-buntansha) |
金子 順一 埼玉大学, 理工学研究科, 教授 (80375584)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | アディティブ・マニュファクチャリング / 金属材料 / 通電加熱 |
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| Outline of Final Research Achievements |
This study proposes a new additive manufacturing technology that enables highly efficient, high-precision accumulation of various dissimilar metal materials. In the proposed method, the wire and base metal are bonded by heating the wire material with electric current, and the metal materials are directly deposited.
Through experiments, we investigated the relationship between processing parameters such as wire feed rate, stage feed rate, and heat input energy of Joule heating, and bead shape. The results showed that insufficient heat input relative to bead volume resulted in poor bonding and bead buckling. Excessive table feed rate relative to the heat input was also found to cause humping.
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| Free Research Field |
生産加工学
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| Academic Significance and Societal Importance of the Research Achievements |
ワイヤの直接加熱により低入熱での積層を可能にした．提案方法ではワイヤへの入熱が支配的であることから，アーク溶接方式など他の方式と比較して幅が細いビードが得られた．また，ワイヤが完全に溶融する，もしくは半凝固に近い状態でビードが形成していると考えられ，熱の影響を低減することが期待される．
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