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将四坐标侧铣加工存在的加工误差分为由四坐标加工自身的局限性引起的误差和法矢异向引起的误差两种 ,分别对这两种误差的产生原因进行了分析并给出了计算公式 ,另外还给出了法矢异向引起的误差沿直母线方向的分布并提出了一种减小法矢异向引起的误差的算法
There are two kinds of errors in the four-coordinate side milling processing, which are caused by the limitation of the four-coordinate machining and the errors caused by the normal vectors. The causes of these two kinds of errors are respectively analyzed and presented The formula of calculation is given and the distribution of the error caused by the normal direction of the normal vector along the direction of the straight bus is also given and an algorithm to reduce the error caused by the normal direction of the normal vector is proposed