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What cousing the inner bore is tapered after internal grinding?

May 26, 2017

This defect is shown in figure 5-52, mainly in case of center line of the vertical grinder headstock shaft is not parallel to the worktable longitudinal direction or the axis center line of the grinding wheel is not parallel with the work table feed direction in the vertical plane. At this time, the grinder should be adjusted or repaired.


During the batch grinding, if the taper holes appeared in midway, at this time, do not blindly adjust the grinder,because the grinding wheel dull or grinding block, can all cause the wall thickness of the work piece holes difference become too large, and the difference of thermal expansion also results in to the taper hole. Therefore, measures should be taken after finding out the reasons.

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