|
HAO Yongtao
JIANG Lili
CAD Research Center,
Tongji University,
Shanghai 200092, China
|
|
|
OPTIMAL ALGORITHM FOR NO TOOl-
RETRACTIONS CONTOUR-PARALLEL OFFSET TOOL-PATH LINKING
Abstract:
A contour-parallel offset (CPO) tool-path linking algorithm is derived without tool- retractions and with the largest practicability. The concept of “tool-path loop tree” (TPL-tree) providing the information on the parent/child relationships among the tool-path loops (TPLs) is presented. The direction, tool-path loop, leaf/branch, layer number, and the corresponding points of the TPL-tree are introduced. By defining TPL as a vector, and by traveling throughout the tree, a CPO tool-path without tool-retractions can be derived.
Key words:
Contour-parallel offset machining Tool-path loops Tool-path loop tree
Optimal algorithm
|