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历来磨加工都是轴承制造技术领域的关键技术和核心技术。国外轴承工业,6年代已形成一个稳定的套圈磨加工工艺流程及基本方法,即:双端面磨削——无心外圆磨削——滚道切入无心磨削——滚道精研加工。除了结构特殊的轴承,需要附加若干工序外,大量生产的套圈均是按这*程加工的。几十年来,工艺流程未出现根本性的变化,但是这并不意味着轴承制造技术没有发展。简要地说,6年代只是建立和发展双端面——无心外圆——切入磨——精研这一工艺流程,并相应诞生了成系列的切入无心磨床和精研机床,零件加工精度达到3~5um,单件加工时间13~18s。年代则主要是以应用6m/s高速磨削、控制力磨削技术及控制力磨床大量采用,以集成电路为特征的电子控制技术的数字控制技术被大量采用,从而提高了磨床及工艺的稳定性,零件加工精度达到1~3um,零件加工时间1~12s。年代以来,工艺及设备的加工精度已不是问题,主要发展方向是在稳定质量的前提下,追求更高的效率,调整更方便以及制造系统的数控化和自动化。轴承套圈的磨削加工在轴承生产中,磨削加工劳动量约占劳动量的6%,所用磨床数量也占全部金属切削机床的6%左右,磨削加工的成本占整个轴承成本的15%以上。