【摘要】 在ＣＡＤ，ＣＡＭ系统中，怎样更好地构造出有效的物体几何模型是系统的关键问题．现代几何造型技术的引入使其迎刃而解．本文通过对几何造型技术的研究，采用几何体素构造法对某些复合曲面进行了构造，并运用所开发的ＧＭＳ曲面造型系统进行了锻模型腔中圆弧、圆环过渡面的造型设计．更多还原

【Abstract】 In the CAD/CAM systems,the key issue is how to efficiently construct a better geometric model. The modern geomtric modeling technology makes this easily to be overcome. This thesis is based on the study of the geometric modeling,adopting geometric element construction method forming complex surfaces. Using GMS surface modeling system,model designing for the arc and circle’s transition surfaces has also been developed in this thesis.更多还原