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Contouring error is a key criterion in high-speed and high-precision multi-axes manufacturing. However, it's hard to find the analytical expression of the real contouring error for any free-form contour and most of existing researches focused on the estimation methods. In order to achieve high contouring accuracy, we design a decoupled controller based on the contouring error information by applying...
Contouring control based on task coordinate frames (TCF) can improve the contouring performance directly by strengthening the tracking capability along contour-following direction. A novel task polar coordinate frame (TPCF) is proposed for the biaxial system contouring control, based on circular approximation. Compared with the classical TCF using tangent line approximation, TPCF can achieve more...
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