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- W4360905471 abstract "Multi-stage hot forging is a typical manufacturing technology to produce mechanical components with complex shape. In the multi-stage hot forging, flash should always be minimized for material saving, and the uniform deformation is also preferable for high strength of a product. Billet shape directly affects the flash, and it is important to determine the billet shape minimizing the flash. In addition, the process parameters in multi-stage hot forging such as die stroke have an influence on the flash and the uniform deformation. In this paper, the billet shape and the process parameters in multi-stage hot forging is optimized so as to minimize the flash and the equivalent strain. Therefore, multi-objective optimization is performed. The three-dimensional numerical simulation is so intensive that sequential approximate optimization using radial basis function network is adopted for the design optimization. It is found from the numerical result that the trade-off between the flash and the equivalent strain is clarified, and the flash is drastically reduced compared to the conventional billet shape." @default.
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- W4360905471 date "2022-01-01" @default.
- W4360905471 modified "2023-09-23" @default.
- W4360905471 title "Multi-objective optimization of billet shape and process parameters in multi-stage hot forging" @default.
- W4360905471 doi "https://doi.org/10.1299/jsmedsd.2022.32.1108" @default.
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