支架零件半固态压铸充型过程的模拟和验证  

Simulation and Validation of Filling Process inSemi-solid Thixo-diecasting Brackets

作　　者：史立峰[1] 赵大志[2] 王平[2] 崔建忠[2] 

机构地区：[1]辽宁装备制造职业技术学院塑性成形系 [2]东北大学材料电磁过程研究教育部重点实验室

出　　处：《特种铸造及有色合金》2012年第4期318-320,共3页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(50374031);国家高技术研究发展计划(863计划)资助项目(2003AA305090);辽宁省航空科学基金资助项目(20054003)

摘　　要：利用AnyCasting软件模拟了支架零件的半固态压铸充型过程,对比分析了不同的充型速度、转换位置对充型结果的影响,并进行了试验验证。结果表明,当压射冲头以0.1m/s低速推动半固态浆料通过内浇道,在充型20%进行1m/s高速转换时,能够获得完整、轮廓清晰的半固态成形件。模拟结果与实际相符合。The filling process in semi-solid thixo-diecasting brackets was simulated by the AnyCasting,and influence of different filling speeds and switching positions on flow field of semi-solid slurry in mold was analyzed comparatively.The experiment was conducted to validate the simulated results.The results show that with the filling speed of 0.1 m/s at low speed stage and 1 m/s at high speed stage,and the speed switch performed with filling of 20% slurry,semi-solid parts with complete and clear appearance can be produced sucessfully.The simulation results are well in agreement with experimental ones.

关 键 词：半固态 压铸 充型速度 数值模拟 

分 类 号：TG249.2[金属学及工艺—铸造] O242[理学—计算数学]