A Novel Approach for Automatic Machining Feature Recognition with Edge Blend Feature

Abstract

Abstract. This paper presents an algorithm for efficiently recognizing and determining the convexity of an edge blend feature. The algorithm first recognizes all of the edge blend features from the Boundary Representation of a part; then a series of convexity test have been run on the recognized edge blend features. The novelty of the presented algorithm lies in, instead of each recognized blend feature is suppressed as most of researchers did, the recognized blend features of this research are gone through a series of convexity test before this blend features are used in automatic machining features recognition. A new graph-based method is also introduced with taking account of this edge blend features used in automatic machining feature recognition. This study has contributed to CAD/CAPP integration based on STEP standard in the life cycle of product development.

Towards Efficient Milling of Multi-Cavity Aeronautical Structural Parts Considering ACO-Based Optimal Tool Feed Position and Path

“…To avoid cracks in the corners of cavities, secondary corner-milling is required [ 11 ]. In CNC milling the cavity, in order to avoid over-cutting or under-cutting at the corner, the programmer needs to set the arc milling program according to the transition arc radius and tool radius of the part corner [ 2 , 12 ], which is also defined as blend feature [ 13 , 14 , 15 ]. When the processed parts have more blend features, this method increases the difficulty of CNC programming, prolongs the time of CNC machining process programming, and affects the production efficiency of the enterprise.…”