
Hot Tearing in Gigacastings
Tesla’s Gigacasting for the Model Y has revolutionized the industry. However, with larger castings, hot tearing becomes a significant challenge. Hot tearing is common in casting alloys like AlCu5, with their large solidification range. For Gigacastings, several factors amplify this problem. The longer flow lengths mean the melt front cools significantly, making recombination difficult. Additionally, residues from the die-spraying process accumulate on the surface, further hindering recombination.



