安装架石膏型熔模铸造数值模拟及工艺优化
|
摘要
利用View Cast软件对安装架石膏型熔模铸造工艺进行了充型和凝固过程的数值模拟,预测了铸件缺陷可能存在的位置。模拟结果显示,铸件法兰部位存在缩松、缩孔缺陷。根据缺陷的位置及形成原因,对初始工艺方案的浇注系统进行了优化,再次进行充型、凝固过程模拟。结果表明,优化的浇注系统能够减少铸造缺陷,使用优化工艺生产出的铸件满足HB962-2005标准要求。
The filling and solidification process of plaster mold investment casting process of mounting rack was numerically simulated by using View Cast software. The possible positions of casting defects were predicted. The simulation results show that there are shrinkage and shrinkage defects in the flange position of castings. According to the location of the defects and causes, the gating system of the initial process was optimized. The mold filling and solidification process was again simulated. The results show that the optimized gating system can reduce the casting defects; the castings produced by the optimized process meet the requirements of the HB962-2005 standard.
The filling and solidification process of plaster mold investment casting process of mounting rack was numerically simulated by using View Cast software. The possible positions of casting defects were predicted. The simulation results show that there are shrinkage and shrinkage defects in the flange position of castings. According to the location of the defects and causes, the gating system of the initial process was optimized. The mold filling and solidification process was again simulated. The results show that the optimized gating system can reduce the casting defects; the castings produced by the optimized process meet the requirements of the HB962-2005 standard.
引文
[1]王狂飞,许广涛,张锦志,等.镁合金薄壁件的石膏型精密铸造[J].特种铸造及有色合金,2014(6):626-628.
[2]王涛,陈超英,张喜山,等.薄壁铝合金铸件石膏型真空浇注加压凝固铸造工艺[J].特种铸造及有色合金,2012(3):264-266.
[3]程鲁.复杂薄壁镁合金石膏型精密成形工艺研究[D].武汉:华中科技大学,2011.
[4]中国机械工程学会铸造分会.铸造手册·特种铸造[M].北京:机械工业出版社,2003.
[5]李爱农,陈东升,曹子荷,等.悬索桥主索鞍充型过程数值模拟与工艺优化[J].热加工工艺,2017,46(1):106-109.
[6]金辉,华勤.铸造工程基础[M].北京:北京大学出版社,2009.
[7]蓝雄.大型数控机床立柱部件消失模铸造工艺设计[J].热加工工艺,2017,46(3):105-108.
[8]张军强,米国发,王有超,等.球铁平衡轴壳型铸造工艺优化[J].铸造,2015(9):874-878.
[9]王狂飞,周志杰,王有超,等.铸铝ZL205A石膏型低压铸造工艺计算机模拟[J].热加工工艺,2011,40(17):57-58.
[10]左善超,历长云,米国发,等.铸铁耐磨片壳型铸造工艺设计及优化[J].热加工工艺,2016,45(7):74-77.
[11]邵春娟,米国发,历长云,等.横梁型铸铝隔板砂型铸造工艺设计及优化[J].热加工工艺,2017,46(3):90-93.
[12]张宏伟,王茜,郑喜平,等.刮板机联轴器铸造工艺的数值模拟[J].热加工工艺,2016,45(15):95-97.
[2]王涛,陈超英,张喜山,等.薄壁铝合金铸件石膏型真空浇注加压凝固铸造工艺[J].特种铸造及有色合金,2012(3):264-266.
[3]程鲁.复杂薄壁镁合金石膏型精密成形工艺研究[D].武汉:华中科技大学,2011.
[4]中国机械工程学会铸造分会.铸造手册·特种铸造[M].北京:机械工业出版社,2003.
[5]李爱农,陈东升,曹子荷,等.悬索桥主索鞍充型过程数值模拟与工艺优化[J].热加工工艺,2017,46(1):106-109.
[6]金辉,华勤.铸造工程基础[M].北京:北京大学出版社,2009.
[7]蓝雄.大型数控机床立柱部件消失模铸造工艺设计[J].热加工工艺,2017,46(3):105-108.
[8]张军强,米国发,王有超,等.球铁平衡轴壳型铸造工艺优化[J].铸造,2015(9):874-878.
[9]王狂飞,周志杰,王有超,等.铸铝ZL205A石膏型低压铸造工艺计算机模拟[J].热加工工艺,2011,40(17):57-58.
[10]左善超,历长云,米国发,等.铸铁耐磨片壳型铸造工艺设计及优化[J].热加工工艺,2016,45(7):74-77.
[11]邵春娟,米国发,历长云,等.横梁型铸铝隔板砂型铸造工艺设计及优化[J].热加工工艺,2017,46(3):90-93.
[12]张宏伟,王茜,郑喜平,等.刮板机联轴器铸造工艺的数值模拟[J].热加工工艺,2016,45(15):95-97.