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QI Huazhen, TIAN Xincheng, ZHANG Xueyi, PENG Bo. A interpolation algorithm for saddle-shaped curve auto-welding based on angle approaching[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (3): 93-96.
Citation: QI Huazhen, TIAN Xincheng, ZHANG Xueyi, PENG Bo. A interpolation algorithm for saddle-shaped curve auto-welding based on angle approaching[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (3): 93-96.
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A interpolation algorithm for saddle-shaped curve auto-welding based on angle approaching

  • School of Control Science and Engineering, Shandong University, Jinan 250061, China

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  • Received Date: April 13, 2006
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  • The paper introduces operational principle, interpolation algorithm and software implementation design of saddleshaped auto-welding system.By x, y, z three-axis interconnected, the system controls welding torch completing auto-welding of saddle welding seam.Based on two dimensional circular interpolation of angle approaching, the geometrical characteristic of saddle-shoped curve was analyzed, and a interpolation algorithm by geometrical relation of x, y, z three coordinate was designed.Algorithm makes use of the whirliglg for the projected footprint in the xoz plane of saddle-shaped curve to fit saddle-shaped curve, which desolves the problem of auto-welding for saddle welding seam consequently.The algorithm is so samiple that it can be easily realized by programme with minor error and high efficiency.
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