Posted by Frank on August 07, 2017 at 22:20:22:
In Reply to: Re: How to change hob during hobbing process? posted by Reiska on August 07, 2017 at 01:22:04:
I do not have a lot of experience with coated hobs. Most of my work is fine pitch. Someone told me ( a gear manufacturer) that the cutters need to be uncoated before sharpening and recoated for after sharpening. I think the coating may cause the cutter to crack, not sure on this but it would cause problems if there were hairline cracks.
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