Influence of Mold Temperature on Microstructure and Shrinkage Porosity of the A357 Alloys in Gravity Die Casting

Li, Longfei; Li, Daquan; Gao, Jintao; Zhang, Yongzhong; Kang, Yonglin

doi:10.1007/978-981-13-0107-0_77

Cited by 3 publications

(1 citation statement)

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“…Li et al investigated the effect of the mold cooling capacity on shrinkage porosity in gravity die casting. They found that the formation of shrinkage porosity becomes more likely as the mold temperature increases [6]. In squeeze casting, a high pressure exerted on the solidifying slug provides a more complete fill of the die, and the porosity of the castings also decreased with a high squeezing pressure [7].…”

Section: Introductionmentioning

confidence: 99%

Effects of Process Parameters on Shrinkage Porosity in 357 Semi-Solid Die Casting Parts

Liu

Luo

et al. 2020

MSF

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The shrinkage porosity that was caused by the insufficient feeding during solidification, was a common defect in the semi-solid die casting process. This defect decreased significantly the mechanical properties of the casting. In order to avoid the shrinkage porosity in casting, the die design, slug preparation and die casting process were carefully considered. In this study, a designed mold was used to make the sequential solidification of the slug. The process parameters, including intensification pressure, die temperature and biscuit thickness of the casting, were studied to show their influence on shrinkage porosity defects. The experimental results show that the high intensification pressure, high die temperature and long biscuit can be beneficial to obtain castings with no shrinkage porosity.

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Section: Introductionmentioning

confidence: 99%