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基于仿射交换的数学方法，运用凸轮轮廓曲线拟合非线性曲线，提出了一种利用凸轮形成软靠模实现该复杂型线加工的新方法，简单易行，经济可靠，已在ＯＣ曲面活塞中凸型线加工中成功应用，证明了其实用性及合理性。
Based on the mathematical method of affine exchange, a new method of machining the complex profile by using cam profile is proposed by using the curve of cam profile to fit the non-linear curve. The method is simple, economical and reliable. The successful application of the convex line processing proved its practicality and rationality.