Rapid casting of complex impeller based on 3D printing wax pattern and simulation optimization
Rapid casting of complex impeller based on 3D printing wax pattern and simulation optimization
复制标题
基于3D打印蜡模及仿真优化的复杂叶轮快速铸造
DOI：
10.1007/s00170-018-2736-9
复制
发表时间：
2019
影响因子：
3.4
通讯作者：
Sun Baode
中科院分区：
文献类型：
--
作者：
Wang Donghong;Dong Anping;Zhu Guoliang;Shu Da;Sun Jinyu;Li Fei;Sun Baode
快速铸造是铸造技术数字化、信息化、优化化的产物。它主要包括快速成型和虚拟制造。为了缩短不锈钢闭式叶轮铸件的生产周期，采用高抗冲聚苯乙烯（HIPS）选择性激光烧结和光敏树脂光固化成型技术（SL）制备了不锈钢闭式叶轮铸件蜡模。为了防止缩松缺陷的形成，设计了不同的浇注系统，考察了浇注和凝固过程中金属液的流动和凝固行为。结果表明，浇注温度为1550 ° C，浇注速度为0.75 m/s，有利于叶轮铸件的充型，可避免铸造缺陷。优化后的浇注系统避免了铸件表面缩松和内部缺陷的产生。通过实验验证了优化后的浇注系统，实现了基于3D打印蜡模和模拟优化的快速铸造。这种快速铸造可以减少加工时间和成本，并提高铸造行业的铸件质量。
Rapid casting is the product of digital, information, and optimization of casting technology. It mainly includes rapid prototyping and virtual manufacturing. In order to shorten the production cycle of a stainless steel closed impeller casting, the wax pattern was made by high impact polystyrene (HIPS) with a selective laser sintering and photosensitive resin with stereolithography (SL). In order to prevent the formation of shrinkage defects, different gating systems designed to examine the molten metal flow and solidification behavior during the pouring and solidification process. The results show that pouring temperature is 1550 °C and pouring speed is 0.75 m/s, which is favorable for filling impeller castings, and can avoid casting defects. The optimized gating system prevented surface shrinkage and interior defects. The optimized gating systems have been verified by experiment, and the rapid casting has been realized based on 3D printing wax pattern and simulation optimization. This rapid casting can reduce processing time and costs, and enhance casting quality in the foundry industry.