Re: Help With Hobbing Serrations


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Posted by leka on July 28, 2013 at 15:04:56:

In Reply to: Help With Hobbing Serrations posted by Tim on July 28, 2013 at 10:18:40:

all serration hobs are designed to cut a persific number of teeth on a persific diameter ie 36 on 1/2" any movement away from its specified diameter will change the form. Is the diameter for the 100 teeth the same as that for 120 if so that won't work either, also if you calculate the circular pitch of 100 teeth and then calculate a new diameter for 120 with the same circular pitch this won't work either because again the form will change, so the bottom line is you can't cut this serration with that hob.


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