This research paper presents a five step algorithm to generate tool paths for machining Free form / Irregular Contoured Surface(s) (FICS) by adopting STEP-NC (AP-238) format. In the first step, a parametrized CAD model with FICS is created or imported in UG-NX6.0 CAD package. The second step recognizes the features and calculates a Closeness Index (CI) by comparing them with the B-Splines / Bezier surfaces. The third step utilizes the CI and extracts the necessary data to formulate the blending functions for identified features. In the fourth step Z-level 5 axis tool paths are generated by adopting flat and ball end mill cutters. Finally, in the fifth step, tool paths are integrated with STEP-NC format and validated. All these steps are discussed and explained through a validated industrial component.
ANBALAGAN, A. 2010. Feature recognition and tool path generation for 5 axis STEP-NC machining of free form/irregular contoured surfaces. In Katalinic, B. (ed.) Proceedings of 21st Danube Adria Association for Automation and Manufacturing (DAAAM) international symposium 2010: intelligent manufacturing and automation, 20-23 October 2010, Zadar, Croatia. Vienna: DAAAM International [online], article ID 618, pages 1235-1236. Available from: https://www.daaam.info/...0/24469_Symp_2_head.pdf