摘要
将铸造数值模拟技术和数字化无模铸造精密成形技术结合起来,进行机身铸件的快速制造。通过机身铸造过程工艺模拟,分析了铁液充型和凝固过程,防止在铸造过程中发生浇不足、冷隔、缩松、缩孔等铸造缺陷。采用数字化无模铸造精密成形技术,进行了砂型在三维CAD模型驱动下的直接切削加工成形,实现了铸型加工的快速化和精确化。通过铸造模拟和铸型加工技术的联合应用,成功开发出装订机机身铸件,实现了三维CAD/CAE/CAM的集成应用,以及数字化设计、数值模拟、数字化加工的无缝连接。为大型、复杂铸件的快速开发提供了一种新的制造方法。
Combining numerical simulation technology with digital precision forming technology without pattern casting, to rapidly produce body castings. Through casting process simulation, the hot metal filling and solidification process was analyzed to prevent the casting from incurring defects such as cold lap, shrinkage porosity and shrinkage hole during casting process. Using digital precision forming technology without pattern casting, the sand molds were directly milled in 3D CAD mold driving. The rapid and accurate sand mold manufacturing was achieved without wooden mold. Combination of casting simulation and sand mold milling technology, the body casting of binding machine was successfully developed to realize integration application of 3D CAD/CAE/CAM, and seamless connectivity of digital design, numerical simulation and digital processing, which provides a new method of manufacturing for rapid development of large ＆ complex castings.
出处
《铸造技术》
CAS
北大核心
2013年第10期1324-1326,共3页
Foundry Technology
基金
国家国际科技合作项目(2011DFA71410)
关键词
无模铸造
快速制造
铸型加工
铸造模拟
patternless casting
rapid manufacture
sand mold milling
casting simulation
