DEVELOPMENT OF HOLE RECOGNITION SYSTEM FROM STEP FILE

C. F. Tan (Department of Design and Innovation, Faculty of Mechanical Engineering, Kolej Universiti Teknikal Kebangsaan Malaysia, Ayer Keroh, Malacca)
N. Ismail (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Selangor)
S.V. Wong (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Selangor)
S. Sulaiman (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Selangor)
M.R. Osman (Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Selangor)

ASEAN Journal on Science and Technology for Development
Vol. 22 No. 3 (2005): ASEAN Journal on Science and Technology for Development (AJSTD)

This paper describes the development of Hole Recognition System (HRS) for Computer-Aided Process Planning (CAPP) using a neutral data format produced by CAD system. The geometrical data of holes is retrieved from STandard for the Exchange of Product model data (STEP). Rule-based algorithm is used during recognising process. Current implementation of feature recognition is limited to simple hole feat ures. Test results are presented to demonstrate the capabilities of the feature recognition algorithm.