Cutting area extraction from a Z-map model.
- Resource Type
- Article
- Authors
- Jian-Zhong Yang; Qi-Fu Wang; Zheng-Dong Huang; Gang Chen
- Source
- International Journal of Advanced Manufacturing Technology. Jul2007, Vol. 33 Issue 9/10, p1010-1016. 7p. 12 Diagrams.
- Subject
- *MACHINING
*CUTTING (Materials)
*MANUFACTURING processes
*MACHINE-shop practice
*MATHEMATICAL models
*ALGORITHMS
- Language
- ISSN
- 0268-3768
A method for boundary extraction of cutting area is presented. With this method, the compound surfaces are approximated by the Z-map model to address the issues regarding cutting area generation. The run-length code is constructed to represent the object area in each cutting layer. A boundary tracing algorithm extracts boundaries by sequentially linking nodes according to the connectivity information of runs. The formed boundaries are sorted and arranged in a boundary representation tree representing the topological structure of the cutting area in the cutting layer. The presented method, simple and effective, has the capability of automatic recognition of contours and islands. The experimental NC machining results demonstrate the feasibility of the algorithm. [ABSTRACT FROM AUTHOR]