模具型腔的NURBS几何描述方法的研究

Study of the NURBS Describing Method on the Mold Cavity of the Molding Tool

模具型腔通常是由若干不同的曲面光滑过渡连接而成的,目前可以用于模具型腔曲面的描述方法代有网格法、代数法和NURBS(Non-Uniform Rational B-SpLine),本文具体给出了NURBS曲面描述模具型腔曲面的计算方法,并进行了分析。

The Mold Cavity of the Molding tool is linked by the different curved surface smoothly and gradually .The describing methods of the surface of the mold cavity of the Molding tool have the gridding method, the algebraic method and the NUR.BS method. The NUR.BS describing method on the mold cavity of the molding tool is studied in this article, the analyse is presented.