自动铺丝束成型的关键技术

文章提出了一种用于自由曲面零件铺丝束成型轨迹规划的新方法,即基于STL文件格式的轨迹规划.由于STL文件使用三角形面片进行拓扑,从而逼近自由曲面,这使得在自由曲面上的轨迹求取转化为在三角形面片上的连续轨迹求取,具有算法简单,适应性强的特点,并且可直接得到以点集组成的轨迹数据.该方法利用大型CAD软件的设计和造型功能,而将造型文件保存为STL格式进行轨迹规划,使之对造型软件的依赖性大大减小且便于轨迹求取,并且,在精度方面完全满足铺丝束成型的要求.

The Key Technology About Automatic Fiber Placement

This article put forward a new method for layout the track of automatic fiber placement on free form face-track layout based on STL document format. Because the STL document gives approximation to free form face using little triangle face, layout of placement become very easily and flexible when convert the solution procedure on free form face into on triangle slice. It can also gives the trace data composed of points. This method makes use of the design of the software of CAD with the model function, and keeps data as the STL format, so it is independent of special software and meet the requests on accuracy.