THE VECTORIZING PROCESS IN AUTO-PROGRAMMING SYSTEM FOR NC MACHINING

A vectorizing algorithm for the edge extraction from the scanned images of arbitrary drawing is presented to support the implementation of auto-programming system for numerical controlled (NC) laser machining. With the characteristics of the part contour maintained, the NC files generated by the system are compressed greatly. At the same time, the boundary noise is avoided. As a result, the efficiency of laser machining is further increased.