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Thread: inner diameter oval

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  1. 01-15-2013, 09:58 PM #1
    mat 1
    mat 1 is offline Registered
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    inner diameter oval

    Hi. I'm turning a component on a mazak qts 300 and my part is coming off oval on the inner diameter. It is the right measurment when I check it staight accross and up to down with a internal mike but at least 0.03 oval when I check it diaganol . The jaws are bored out to the same as my od and my chuck pressure is on 100 psi. Can't figure out why I'm not turning a perfect bore. Any help would be appreciated.

    My component is ally
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  2. 04-25-2013, 05:17 AM #2
    eva_1686
    eva_1686 is offline Registered
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    Oct 2009
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    maybe you can check turret alignment ( center boring bar to center of spindle ) or you can check ran out of the spindle....
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