Browse > Article

Tool-path Computing by Slicing Offset Triangles and Tracing Intersections  

Chung Y.C. (서울산업대학교 금형설계학과)
Abstract
This paper discusses the methods of computing tool-paths for machining free-form surfaces on 3-axis CNC machines in die and mould making. In computational view this paper describes the characteristics and issues of the geometric information and the shape, which make computing tool-paths difficult. Important points that should be considered in devising a computing method are also discussed. A newly implemented method is explained and compared with an old method for a commercial CAM system. The implemented method is used in a commercial CAM system and the computing time for an example is presented.
Keywords
Tool-path generation; Slicing offset triangles; NC milling;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Anderson, R. O., 'Detecting and Eliminating Collisions in NC Machining', Computer-Aided Design, Vol. 10, pp. 231-237, 1978   DOI   ScienceOn
2 Choi, B. K., Lee, C. S., Hwang, J. S. and Jun, C. S., 'Compound Surface Modeling and Mmachining', Computer-Aided Design, Vol. 20, No.3, pp. 127-136, 1988   DOI   ScienceOn
3 Kim, S. J. and Yang, M. Y., 'Triangular Mesh Offset for Generalized Cutter', Computer-Aided Design, in press
4 Jun, C. S., Kim, D. S. and Park, S., 'A New Curvebased Approach to Polyhedral Machining', Computer-Aided Design, Vol. 34, pp. 379-389, 2002   DOI   ScienceOn
5 WorkNC, Sescoi, www.sescoi.com
6 추원식, 안성훈, 김동수, 전차수, 'MIMS: 웹기반 마이크로 머시닝 서비스', 한국CAD/CAM학회 논문집, 제9권, 제3호, pp. 246-252, 2004
7 Elber, G. and Cohen, E., 'Toolpath Generation for Freeform Surface Models', Computer-Aided Design, Vol. 26, No.6, pp. 490-496, 1994   DOI   ScienceOn
8 PowerMILL, Delcam, www.powermill.com
9 Hansen, A. and Arbab, F., 'Fixed-axis Tool Positioning with Built-in Global Interference Checking for NC Path Generation', IEEE Journal of Robotics and Automation, Vol. 4, No.6, pp. 610-621, 1988   DOI   ScienceOn
10 박상철, 신하용, 최병규, '점열곡선의 꼬임을 효율적 으로 찾는 알고리즘' 한국CAD/CAM학회 논문집, 제4권, 제3호, pp. 190-199, 1999
11 SPEED Plus, CSCAM, www.cscam.co.kr
12 Piegl, L. A. and Richard, A. M., 'Tessellating Trimmed NURBS Surfaces', Computer-Aided Design, Vol. 27, No.1, pp. 6-26, 1995   DOI   ScienceOn
13 Flutter, A. and Todd, J., 'A Machining Strategy for Tool Making', Computer-Aided Design, Vol. 33, pp. 1009-1022, 2001   DOI   ScienceOn
14 정원형, 정춘석, 신하용, 최병규, '옵셋팅을 위한 정규 삼각망 추출', 한국CAD/CAM학회 논문집, 제9권, 제3호, pp. 203-211, 2004
15 Park, S. C., 'Sculptured Surface Machining Using Triangular Mesh Slicing', Computer-Aided Design, Vol. 36, pp. 279-288, 2004   DOI   ScienceOn
16 The State of the NC Software Market, CAD/CAM Publishing, Inc., 2003
17 Hwang, J. S. and Chang, T. C., 'Three-axis Machining of Compound Surfaces Using Flat and Filleted Endmills', Computer-Aided Design, Vol. 30, No.8, pp. 641-647, 1998   DOI   ScienceOn
18 Austin, S. P., Jerard, R. B. and Drysdale, R. L., 'Comparison of Discretization Algorithms for NURBS Surfaces with Application to Numerically Controlled Machining', Computer-Aided Design, Vol. 29, No. 1, pp. 71-84, 1997   DOI   ScienceOn
19 Park, S. C., Shin, H. and Choi, B. K., 'A Sweep Line Algorithm for Polygonal Chain Intersection and Its Applications', Proceedings of IFIP WG5.2 GEO-6 Conference, Tokyo University, pp. 187-95, 1998
20 정재호, 박준영, 트림된 'NURBS곡면의 효율적인 삼각화 알고리즘', 한국CAD/CAM학회 논문집, 제5권, 제2호, pp.144-154, 2000
21 Piegl, L. A. and Tiller, W., 'Geometry-based Triangulation of Trimmed NURBS Surfaces', Computer-Aided Design, Vol. 30, No.1, pp. 11-18, 1998   DOI   ScienceOn
22 Encyclopedia of the APT Programming Language, CAM-I Inc., 1973