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Which cutting tool for internal sphere turning

ronaldinho_07

Aluminum
Joined
May 23, 2016
Location
VietNam
I need to make a internal sphere.
Look like this,its link for mandrel assembly.
Which cutting profile to do this ?
Thank you
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Without getting into custom tooling, I'd probably drill, bore, then use a full radius 90° groover to get most of the sphere and then use a small VNMG to finish the far end where the groover doesn't fit. The VNMG might be able to finish the whole sphere if there is enough offset.
 








 
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