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Abstract：
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In three dimensional laser bending process, the planning parameters of scanning paths, such as scanning pitch, scanning sequence and the distance between the scanning line and the free end of the sheet metal, have a strong influence on the final deformation of the sheet metalThe bending angle increases with the increase of the distance between the scanning line and the free end of the sheet metalIf the distance continuously increases,the bending angle will decreaseThe final forming result is not good when the scanning pitches are too smallThe final deformation is only the sum of the deformation per scan because the adjacent heated zones don't overlap any longerIt can obtain a better forming result if the sheet metal is irradiated by using a big scanning pitch at first and a new scanning line is arranged between two scanning lines
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Funds：
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山东大学青年基金;;
山东省自然科学基金资助项目 (Y2002F14)
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AuthorIntro：
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Reference：
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