Optimization on Parameters of Hot Forming Process of GH3230 Alloy Sheet

SI Haoxue; LANG Zhenqian; TENG Junfei; ZHANG Song; LI Hong

doi:10.3969/j.issn.1674-6457.2026.02.026

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Journal of Netshape Forming Engineering ›› 2026, Vol. 18 ›› Issue (2) : 275-281. DOI: 10.3969/j.issn.1674-6457.2026.02.026

Superalloy Forming

Optimization on Parameters of Hot Forming Process of GH3230 Alloy Sheet

SI Haoxue¹, LANG Zhenqian¹, TENG Junfei^1,2, ZHANG Song², LI Hong^2,*

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Abstract

To realize the high-precision hot forming of superalloy sheets, the work aims to design reasonable forming process parameters and effectively control springback deformation. Based on the central composite experimental design and finite element simulation technology, the three-dimensional numerical simulation of the hot forming process of GH3230 alloy sheet was carried out. The areas of maximum thickness reduction and maximum springback were located at the arc edge of the sheet. The maximum springback of the sheet decreased gradually with the increase of forming temperature and friction coefficient, while it increased obviously with the increase of punching speed. Hot forming process parameters had minor effect on the thickness of GH3230 alloy sheet. A second-order response surface model of the maximum springback and the maximum thickness reduction during hot forming of GH3230 alloy sheet with the change of forming process parameters was established. Based on this model, the optimized forming process parameters were as follows: the forming temperature was 937 ℃, the friction coefficient was 0.18, and the punching speed was 1 mm/s. The maximum springback of GH3230 alloy sheet after hot forming at the optimized forming process parameters was 0.33 mm, and the maximum thickness reduction was 0.053 mm, which could meet the actual production requirement. The results obtained by simulation are close to the calculated values of the theoretical model, verifying the accuracy of the response surface model.

Key words

GH3230 alloy / sheet / hot forming / springback / response surface model

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SI Haoxue, LANG Zhenqian, TENG Junfei, ZHANG Song, LI Hong. Optimization on Parameters of Hot Forming Process of GH3230 Alloy Sheet[J]. Journal of Netshape Forming Engineering. 2026, 18(2): 275-281 https://doi.org/10.3969/j.issn.1674-6457.2026.02.026

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