共查询到19条相似文献,搜索用时 156 毫秒
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低压铸造CAE软件的开发及应用 总被引:1,自引:0,他引:1
介绍了低压铸造数值模拟的原理、思路以及低压铸造CAE的应用,并给出了一个铝合金蜗壳铸件和汽车轮毂的低压铸造应用实例。采用华铸CAE低压模块对低压铸件充型凝固过程进行模拟的结果与实际符合较好。实际应用表明,低压铸造CAE能有效地评判低压铸造工艺设计的合理性,提高工艺设计效率。 相似文献
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铸件凝固过程数值模拟是提高铸件质量和铸造生产经济效益的重要方法和途径之一。以大型有限元软件ANSYS为工具,以某大型外贸件导风叶轮低压铸造为模型,在对充型完成后温度场的数学模型进行深入分析研究的基础上,成功的模拟了铝合金导风叶轮铸件低压铸造的凝固过零,并根据模拟结果对铸件可能产生的缺陷部位进行了预测,实现了工艺参数的优化和模具的合理设计。 相似文献
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影响低压铸造铸件质量的几种因素 总被引:7,自引:0,他引:7
分析了低压铸造中合金质量、铸型用材料、工艺设计及充型工艺参数等对铝合金铸件成形的影响,认为通过改进合金熔炼工艺和铸造工艺设计以及改善凝固过程中的充型压力可减少铸件缩孔、疏松及其他铸造缺陷发生的倾向. 相似文献
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Baicheng Liu Qingyan Xu Tao Jing Houfa Shen Zhiqiang Han 《JOM Journal of the Minerals, Metals and Materials Society》2011,63(4):19-25
The development of the aviation, energy and automobile industries requires an advanced integrated product/process R&D systems
which could optimize the product and the process design as well. Integrated computational materials engineering (ICME) is
a promising approach to fulfill this requirement and make the product and process development efficient, economic, and environmentally
friendly. Advances in multi-scale modeling of solidification and casting processes, including mathematical models as well
as engineering applications are presented in the paper. Dendrite morphology of magnesium and aluminum alloy of solidification
process by using phase field and cellular automaton methods, mathematical models of segregation of large steel ingot, and
microstructure models of unidirectionally solidified turbine blade casting are studied and discussed. In addition, some engineering
case studies, including microstructure simulation of aluminum casting for automobile industry, segregation of large steel
ingot for energy industry, and microstructure simulation of unidirectionally solidified turbine blade castings for aviation
industry are discussed. 相似文献
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Substrate, a typical ultra-slender aluminum alloy structural components with a large aspect ratio and complex internal structure, was traditionally manufactured by re-assembly and sub-welding. In order to realize the monoblock casting of the substrate, the Pro/E software was utilized to carry out three-dimensional (3D) modeling of the substrate casting, and the filling and solidification processes were calculated, as well as the location and types of casting defects were predicted by the casting simulation software Anycasting. Results of the filling process simulation show that the metal liquid is distributed into each gap runner evenly and smoothly. There is no serious vortex phenomenon in the mold cavity, and the trajectory of the virtual particles is clear. Results of the solidification process simulation show that shrinkage cavities mainly appear at the junction of gap runners and the rail surface of the substrate. The average deformation is 0.6 mm in X direction, 3.8 mm in Y direction, and 8.2 mm in Z direction. Based on the simulation results, the casting process of the substrate was optimized, and qualified castings were successfully produced, which will provide a reference for the casting process design of other ultra-slender aluminum alloy structural components. 相似文献
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大型熔体输运式反重力铸造设备的研制 总被引:1,自引:0,他引:1
针对采用反重力铸造法生产超大型铝合金铸件过程中存在的设备容量不足、铸型难于起吊以及压力不易控制等技术难题,研制了一种大型熔体输运式反重力铸造设备。该设备以避免吊运超重铸型为设计出发点,采用压力罐上侧设置熔体输运口的结构形式,通过熔体转运式或熔体输送式两种不同工作方式,有效解决了熔体处理及输送与铸型准备工作的并行问题。此外,在控制软件中对PID算法进行了模糊化处理,有效提高了设备的压力控制精度。实践证明,研制的大型熔体输运式反重力铸造设备可满足超大型复杂铝合金铸件(轮廓尺寸可达4m,浇注重量超过1t)反重力铸造的生产要求。 相似文献
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低压铸造铝合金轮毂充型模拟实用研究 总被引:21,自引:4,他引:17
根据低压铸造圆盘类铸件的充型特点,设计开发了一套简化充型模拟软件,应用于低压铸造铝合金轮毂铸件的充型模拟。模拟结果与采用SOLA-VOF算法的模拟结果进行对比表明,充型过程及铸件温度分布合理,实现了为后续凝固模拟提供准确的初始温度场的设计目标。该简化算法运算时间短,可以满足实际应用中对运算时间的要求。 相似文献
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根据低压铸造圆盘类铸件的充型特点 ,设计开发了一套简化充型模拟软件 ,应用于低压铸造铝合金轮毂铸件的充型模拟。模拟结果与采用SOLA VOF算法的模拟结果进行对比表明 ,充型过程及铸件温度分布合理 ,实现了为后续凝固模拟提供准确的初始温度场的设计目标。该简化算法运算时间短 ,可以满足实际应用中对运算时间的要求 相似文献
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