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- W4224663346 abstract "Laser fuse additive manufacturing is a new manufacturing technology, it is widely used in automobile, aerospace and other fields. However, to obtain high efficiency deposition in additive manufacturing process, hump and other defects are prone to occur. The change of process parameters will lead to the change of heat transfer flow of molten pool, and the change of temperature will lead to the change of thermal physical parameters, which will lead to the formation of hump defects. In order to study the influence of thermal conductivity and dynamic viscosity on hump defects. In this paper, a threedimensional transient numerical model is established to analyze the heat transfer of molten pool, fluid flow and the formation of hump defects. The results show that when the thermal conductivity is smaller, the viscosity coefficient is smaller, the flow phenomenon in the molten pool is more intense, and it is easier to form the hump defect. The results are helpful to guarantee the deposition quality of laser fuse additive manufacturing." @default.
- W4224663346 created "2022-04-27" @default.
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- W4224663346 date "2022-04-25" @default.
- W4224663346 modified "2023-10-16" @default.
- W4224663346 title "Effect of different thermal properties on the hump defect formation of laser fuse additive" @default.
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- W4224663346 doi "https://doi.org/10.1117/12.2635186" @default.
- W4224663346 hasPublicationYear "2022" @default.
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