一、引言在球面光学冷加工工艺中,粗磨曲率半径的选择值将直接影响着精磨工序的稳定性。为了在大批量生产中,使精磨工序少修模,以至不修模,这里除了要使精磨丸片的排列满足余弦磨损原理之外,对粗磨完工的曲半径值也应该严格要求。过去我们总是首先根据经验选择一个曲率值,或按照其它经验计算方法选择曲率值,然后在生产中逐步修正找出最佳值。这种方法开始时误差有时很大,不太精确。这里介绍另 I. INTRODUCTION In the spherical optical cold working process, the choice of roughing radius of curvature will directly affect the stability of the refining process. In order to mass-produce, the refining process less repair mold, and even repair mold, here in addition to make the arrangement of fine grinding pellets meet the cosine wear principle, the roughness radius of the finished roughing should also be strict requirements. In the past, we always first choose a curvature based on experience, or choose another curvature according to other empirical calculations, then gradually correct the production to find the best value. The error at the beginning of this method is sometimes large, not very accurate. Introduced here