摘要
建立了离心力场下铸造充型流动的数学模型 ,在自行研制的三维铸件充型 /凝固模拟软件 (CASM 3DforWin dows)基础上 ,研制开发了相应的离心力场铸造充型的计算机模拟软件。对钛合金薄壁铸件在重力场下及不同离心精密铸造工艺条件下的充型过程进行了实例模拟计算。计算结果表明 :在离心力场下金属液的薄壁充型能力比重力浇注强得多 ,而“拐头反充”
Computer simulation codes were developed based on a proposed mathematical model for centrifugal mold filling processes and a previous computer software for 3D mold filling and solidification of castings (CASM 3D for Windows). Sample simulations were performed for mold filling processes of precision titanium castings under gravity and different centrifugal casting techniques. The computation results show that the alloy melt has a much stronger mold filling ability for thin section castings under a centrifugal force field than under the gravity. A 'return back' mold filling technique should be adopted for centrifugal casting processes, especially for thin section precision castings.
出处
《铸造》
CAS
CSCD
北大核心
2002年第1期39-43,共5页
Foundry
