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运用质量管理手段．经三次PDCA循环．多次试验，采用相应技术措施保证锻件质量．恢复车床精度．控制工件车削后的尺寸散差和形位公差。确定磨削工序的最佳留量，从而实现小型滚子轴承内圈内径的一次磨削。附图3幅．表5个。
Use quality management tools. After three PDCA cycles. Multiple tests, the use of appropriate technical measures to ensure the quality of forgings. Restoring lathe accuracy. Control the workpiece after turning the size of the dispersion and shape tolerance. Determine the best grinding process reserves to achieve a small roller bearing inner diameter of the primary grinding. Figure 3 Figure. Table 5.