TOOL PATH GENERATION FOR MACHINING FREE-FORM POCKETS WITH ISLANDS
SCIE
SCOPUS
- Title
- TOOL PATH GENERATION FOR MACHINING FREE-FORM POCKETS WITH ISLANDS
- Authors
- KIM, KS; JEONG, JH
- Date Issued
- 1995-04
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- In this paper, we propose a procedure for generating tool paths for machining free-form pockets with multiple islands. A pocket is assumed to have a pocket boundary and island boundaries defined by closed cubic B-spline curves. The pocketing procedure does not require the islands to be disjoint and to be enclosed by the pocket boundary. The pocketing procedure consists of five steps: (1) boundary approximation, (2) boundary merge, (3) profile offset, (4) loop removal, and (5) termination test. The input to the pocketing procedure is a set of closed cubic B-spline curves defining a pocket and its islands, together with the stepover size and the tool radius. The output of the pocketing procedure is the cutter location (CL) data of the three-axis NC milling machine to carve a free-form pocket within a given tolerance. The pocketing procedure is implemented in C on a SUN workstation. An NC simulation module based on the G-buffer method is also implemented to verify the CL tool paths.
- Keywords
- SURFACES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21817
- DOI
- 10.1016/0360-8352(94)00039-P
- ISSN
- 0360-8352
- Article Type
- Article
- Citation
- COMPUTERS & INDUSTRIAL ENGINEERING, vol. 28, no. 2, page. 399 - 407, 1995-04
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