Computational geometry: an introduction
Computational geometry: an introduction
On the computational geometry of pocket machining
On the computational geometry of pocket machining
Automating the optimization of 212 axis milling
Computers in Industry
An algorithm for generating NC tool paths for arbitrarily shaped pockets with islands
ACM Transactions on Graphics (TOG)
Tool path generation for free form surfaces using Bézier curves/surfaces
Computers and Industrial Engineering
Offsets of Two-Dimensional Profiles
IEEE Computer Graphics and Applications
Algorithms for Reporting and Counting Geometric Intersections
IEEE Transactions on Computers
Polygon subdivision for pocket machining process planning
Computers and Industrial Engineering
Computers and Industrial Engineering
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Presented in this paper is a tool-path generation procedure for sidewall machining, a process that is essential in the fabrication of many mechanical parts. While sculptured surface machining has received a significant amount of attention, there has been relatively less study of the technological requirements of sidewall machining. In this paper, three technological requirements are identified: (1) machining clean-up regions after rough machining, (2) avoiding unbalanced tool wear, and (3) retaining down-milling. For the generation of a roughing tool-path, the PWID offset algorithm is utilized. After roughing, it is necessary to identify the clean-up regions. Identifying these regions requires two major computations: a 2D-curve offsetting and a 2D-booleaning operation. To avoid these heavy operations, this paper proposes a method that identifies clean-up regions by making use of the byproducts (interfering ranges) of the PWID offset algorithm. As a result, it is possible to identify clean-up regions efficiently with minimum effort.