THE IMPORTANCE OF A POSTPROCESSOR IN DATA TRANSFER FROM APT FORMAT (CAD) IN ISO FORMAT USED BY HEIDENHAIN ITNC 530

摘要

Researches in computer aided programming were initiated at MIT, followed by APT processor appearance in order to avoid the incompatibilities between CNC equipments and NC programming software. Since then a lot of versions were developed, improving CNC machining. According with APT philosophy, computer aided programming approach of a part machined on CNC machine tool is realized in two separate phases: processing and post-processing. First of all, geometrical definition of all tool path elements is done, followed by logical linking of these elements, and in the second phase all obtained data in previous phase will be converted in a suitable format for CNC equipment.