AlSi7Mg汽车涡轮增压器压壳重力铸造数值分析与缺陷预测
|
摘要
涡轮增压器压壳形状复杂,在重力铸造过程中工艺控制困难,容易产生各种铸造缺陷。针对以上问题,利用Magmasoft软件对Al Si7Mg汽车涡轮增压器压壳铸造过程进行数值模拟,分析了充型过程的温度场;基于Porosity和Niyama判据成功预测了铸件可能出现的铸造缺陷。
The pressure shell of turbocharger was complex in shape, and it was difficult to control the process of gravity casting. Aiming at the above problems, the casting process of Al Si7 Mg turbocharger was numerically simulated by using Magmasoft software, and the temperature field variation of the filling process was analyzed. The possible casting defects are successfully predicted based on Porosity and Niyama criteria.
The pressure shell of turbocharger was complex in shape, and it was difficult to control the process of gravity casting. Aiming at the above problems, the casting process of Al Si7 Mg turbocharger was numerically simulated by using Magmasoft software, and the temperature field variation of the filling process was analyzed. The possible casting defects are successfully predicted based on Porosity and Niyama criteria.
引文
[1]杨帆,徐锦锋,朱爱军,等.涡轮增压器壳体用铸造合金及生产工艺现状[J].铸造技术,2011,32(4):559-562.
[2]王巍,陈建设.基于CAD/CAE技术的汽车涡轮增压器壳体快速铸造工艺研究[J].热加工工艺,2018,49(1):109-112.
[3]李玲娇,石秀东.低压铸造涡轮增压器壳体铸造飞边的形成及消除[J].特种铸造及有色合金,2016,36(1):44-47.
[4]徐锦锋.汽车涡轮增压器涡壳的机遇和挑战[J].铸造技术,2010,31(11):1522-1523.
[5]戎晨阳,潘安霞.高强度涡轮增压器铸件组织性能研究[J].铸造,2009,58(8):843-845.
[6] Cook M T, Agah A. A survey of sketch-based 3-D modeling techniques[J]. Interacting with Computers, 2009, 21(3):201-211.
[7] Qin S F, Wright D K, Jordanov I N. From on-line sketching to 2D and 3D geometry:a system based on fuzzy knowledge[J]. Computer-Aided Design, 2000, 32(14):851-866.
[8] Cherlin J J, Samavati F, Sousa M C, et al. Shetch-based Modeling with Few Strokes[C]. In Proceeding of the Spring Conterence on Computer Graphics(SCCG’ 05), Budme rice,2005:137-145.
[9]熊守美,许庆彦,康进武.铸造过程仿真模拟技术[M].北京:机械工业出版社, 2004.
[2]王巍,陈建设.基于CAD/CAE技术的汽车涡轮增压器壳体快速铸造工艺研究[J].热加工工艺,2018,49(1):109-112.
[3]李玲娇,石秀东.低压铸造涡轮增压器壳体铸造飞边的形成及消除[J].特种铸造及有色合金,2016,36(1):44-47.
[4]徐锦锋.汽车涡轮增压器涡壳的机遇和挑战[J].铸造技术,2010,31(11):1522-1523.
[5]戎晨阳,潘安霞.高强度涡轮增压器铸件组织性能研究[J].铸造,2009,58(8):843-845.
[6] Cook M T, Agah A. A survey of sketch-based 3-D modeling techniques[J]. Interacting with Computers, 2009, 21(3):201-211.
[7] Qin S F, Wright D K, Jordanov I N. From on-line sketching to 2D and 3D geometry:a system based on fuzzy knowledge[J]. Computer-Aided Design, 2000, 32(14):851-866.
[8] Cherlin J J, Samavati F, Sousa M C, et al. Shetch-based Modeling with Few Strokes[C]. In Proceeding of the Spring Conterence on Computer Graphics(SCCG’ 05), Budme rice,2005:137-145.
[9]熊守美,许庆彦,康进武.铸造过程仿真模拟技术[M].北京:机械工业出版社, 2004.