关键词: 离散曲率, 累积曲率, 误差带, 刀轨环, 差分差商

Abstract:

The quality and generating efficiency of a tool path track have been affected severely by the 2D sectional outline generated by separated mesh surfaces. An optimization algorithm about pretreatment of the tool path track based on accumulated curvature was proposed. The algorithm was controlled by the error band based on fairing operator and simplifying operator. The 2D sectional outline was simplified roughly by estimating the discrete curvature and simplified finely by using accumulated curvature. The outline was faired by differences and directional differences algorithm according to its uniform level. Experimental results show that the algorithm runs efficiently. The generating efficiency and quality of the tool-path are increased and the product processing performances are improved.

Key words: discrete curvature, accumulated curvature, error band, tool path track, difference and directional difference