【摘要】 分型设计是砂型设计中重要的一个环节，通过分析快速制造用于典型复杂铸件的砂型分型案例及其特点，对3D打印技术和快速复合成形技术的分型设计思路进行对比阐述。基于典型案例对这两类成形方法用于复杂铸件的砂型分型设计规则进行了归纳和总结，为复杂铸件砂型分型问题提供了较为系统指导性的分型依据，以满足复杂铸件省时高效的发展趋势。更多还原

【Abstract】 Parting design is an important part of sand mold design. By analyzing the cases and characteristics of the sand mold parting used in rapid manufacturing for typical complex castings, and aiming at the rationality of the sand mold structure design of the castings, the parting design ideas of 3D printing technology and rapid composite forming technology were compared and expounded in this paper. Based on typical cases, the sand mold parting design rules of these two kinds of molding methods for the complex castings were summarized,which provides a more systematic and guiding parting basis for the sand mold parting of the complex castings,so as to meet the development trend of time-saving and efficient for the complex castings.更多还原