Curve Fitting Approach of Saddle-Shaped Curve for Automated Welding/Cutting


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Curve fitting, or interpolation algorithm is core technology for Computer Numerical Control (CNC) systems. A saddle-shaped curve is formed by intersection of two tubes. The trajectory interpolation of saddle-shaped curve is usually carried out through approximating the curve as segments of straight line for automated CNC welding/cutting. This paper proposes a new saddle curve curve fitting algorithm for automated welding/cutting system with non-Cartesian coordinate system. Simulation of the direct curve fitting algorithm has demonstrated that the algorithm has high curve interpolation precision and high feedrate stability.



Advanced Materials Research (Volumes 211-212)

Edited by:

Ran Chen






X. C. Tian and X. H. Deng, "Curve Fitting Approach of Saddle-Shaped Curve for Automated Welding/Cutting", Advanced Materials Research, Vols. 211-212, pp. 935-938, 2011

Online since:

February 2011




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