The 2 A12 aluminum alloy shell was produced by squeeze casting process

and the key points of the design of shells and mould were described.The key point of the process is to realize the liquid metal smoothly filling

so specific pressure

mould preheating temperature and other process parameters were adjusted.The results show that with the mould preheating temperature of 350 ℃

the pouring temperature of 690

7

00 ℃and the pressing speed of 10 mm/s as well as the dwelling time of 10 s

the size and performance of squeezing castings meet the design requirements.