【摘要】 基于国产三维图形软件SINOVATION的环境，在源代码的层级上开发了铸钢件冒口CAD系统。利用点模数的概念开发了热节快速分析模块，用于确定冒口位置；开发了铸件局部模数计算模块，计算冒口尺寸；建立了铸钢件标准冒口数据的数据库，开发了基于标准冒口数据的冒口三维图形构建模块。以重载卡车后桥铸钢件为例，完成了其冒口的设计，显著提高了准确性和效率。更多还原

【Abstract】 Based on the domestic three-dimensional graphics software SINOVATION, the riser CAD system of steel castings was developed. A hot spot rapid-analysis module was developed to determine the position of the riser using point modulus method. The calculation module of casting local modulus was developed to get the size of the risers. The database of standard riser data of the casting steel was established, the riser generation module based on standard riser data was developed. Taking the rear axle of heavy truck as an example, the riser design was completed, which significantly improved the accuracy and efficiency.更多还原