Abstract: Heal transfer characteristics in liquid forging have been studied by using LY12 aiuminium alloy. The rolationships of interfacial coefficient of heat transfer and solidification time with specific prossure have been determined by experiments. The effects of main technological parameters on solidification time have been measured. On discussing the characteristics of heat transfer, one-dimensional analytical formulae for ealoulating solidiflealion rate have been given, Furthormere, computer simulation has been used to deal with three-dimensional problem, the aumorieal results are in good agreement with experimental data, and those are of general significance.

Key words: 传热, 凝固, 液态模锻