电磁加热回收增材制造用718镍合金粉末有限元模拟

doi:10.13228/j.boyuan.issn1005-4006.20220099

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Abstract Inconel718 alloy was one of the most widely used materials in additive manufacturing. Due to the low effective utilization rate of powder in the additive manufacturing process, a large amount of powder had to be recovered. However, there was a problem of slow melting speed in the recovery and remelting process. Therefore, the melting process of Inconel718 metal powder was simulated by induction furnace heating, the change of melting rate of recycling powder under different conditions was investigated by changing the diameter, shape, distribution of powder, power, frequency, atmosphere, number of coils and the distance between the coils and crucible center. The simulation results show that in a certain size range, the melting rate of Inconel718 powder is the fastest when the prepared sphere diameter is 0.010 m and the large particle size powder is distributed under the crucible. At the same time, the melting rate increases with the increase of heating power, frequency and number of coils, and decreases with the increase of the distance between the coils and crucible center, the heating atmosphere can be argon or vacuum.

Key words： additive manufacturing Inconel718 powder induction heating melting rate simulation

Received: 31 May 2022

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http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20220099 OR http://www.chinamet.cn/Jweb_lz/EN/Y2023/V42/I2/34

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