Numerical research on Inconel718 laser additive repairing

Shengyuan Sun; Zifa Xu; Jihao Xu; Haolei Ru; Kun Zeng; Yongyue Liu; Hongbo Xia

doi:10.1117/12.2641969

16 December 2022 Numerical research on Inconel718 laser additive repairing

Shengyuan Sun, Zifa Xu, Jihao Xu, Haolei Ru, Kun Zeng, Yongyue Liu, Hongbo Xia

Proceedings Volume 12312, Advanced Laser Processing and Manufacturing VI; 123120S (2022) https://doi.org/10.1117/12.2641969
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

To study the influence mechanism of process parameters on the temperature field and the repair performance in Inconel718 nickel-base-superalloy laser additive repairing process, numerical research was carried out. A three-dimensional finite element model was established, and the finite element software ANSYS was used to simulate the temperature field. The influence of the laser power, the scanning speed on the laser additive repairing temperature distribution and the penetration depth and width of the repair zone were analyzed. The numerical result and the experimental measurement result was compared, and the result showed that as the laser power is in the range of 229~668W and the cladding speed is in the range of 6~16mm/s, the metallurgical bond was formed between the repair layer and the matrix material. The maximum temperature at the interface between the repair layer and the substrate is proportional to the laser power and inversely proportional to the scanning speed. The theoretically calculated penetration depth and penetration width of the repair zone are basically consistent with the experimental measurement results. The theoretical simulation can provide theoretical guidance for the parameter optimization in the laser additive repairing process.

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Shengyuan Sun, Zifa Xu, Jihao Xu, Haolei Ru, Kun Zeng, Yongyue Liu, and Hongbo Xia "Numerical research on Inconel718 laser additive repairing", Proc. SPIE 12312, Advanced Laser Processing and Manufacturing VI, 123120S (16 December 2022); https://doi.org/10.1117/12.2641969

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