LIU S G,CHEN J Z,PAN J J,et al. Prediction and control of casting deformation in large-sized axisymmetric castings[J]. Special Casting & Nonferrous Alloys,2026,46(10):1 531-1 536.
LIU S G,CHEN J Z,PAN J J,et al. Prediction and control of casting deformation in large-sized axisymmetric castings[J]. Special Casting & Nonferrous Alloys,2026,46(10):1 531-1 536.DOI: 10.15980/j.tzzz.T20250436.
Prediction and Control of Casting Deformation in Large-sized Axisymmetric Castings
The influence of pouring system on metallurgical quality, casting stress and deformation of large-sized axisymmetric castings was investigated by combining simulation and experimental verification. The results show that with the long filling process of large-sized castings, the temperature at the front of the alloy liquid is decreased significantly, resulting in uneven temperature distribution along the circumference after filling, and significant differences in solidification and cooling rates in different regions. The areas with fast cooling rate have high casting stress and large deformation of castings, while the areas with slow cooling rate has relatively low casting stress and small deformation. By optimizing the pouring system, it is ensured that the temperature field of the casting is evenly distributed along the circumferential direction, and the cooling rate and casting stress in different areas tend to be consistent, which can significantly reduce the deformation of the casting and obtain castings with qualified dimensions.
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