关键词: 辊轧叶片, 前后缘, 圆滑转接, 配准, 模型构建

Abstract: To solve the problem of smooth connection between the edge and body of compressor blades in the following CNC manufacturing,a leading and trailing smooth connection modeling method was presented based on the measurement data from champed blades,which consisted of first matching considering point cloud and second matching considering tolerance zone between the two models.The CAD model of roll-forming blade leading and trailing smooth connection was constructed precisely by this method,which could also meet the need of following NC machining.The modeling experiments based on real measurement data were used to verify the precision and practicability of this method,and the result showed that the high accuracy smooth connection between the edge and body of compressor blades could be realized.

Key words: roll-forming blade, leading and trailing edges, smooth connection, registration, model construction