Gear cutter

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I think your HSS might be suffering from a lack of coolant and some small excess of speed, as long as it's just 4140HT and not something you've hardened up special. I cut gears from 4140HT with regular HSS gear cutters and haven't had any real problem with it, but it is something that will point out the difference between a sharp cutter and a slightly dulled one.

It's the spline end that would bother me - got the specs on it? If not is the mating part available? If not it may be a fun time in the shop to make something to fit without something to test against.

Posted on Jun 13, 2011, 5:36 AM

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  1. Splines are in machinery's handbook, grind cemented carbide to form. lakc, Jun 13, 2011
  2. Agreed.... , Jun 13, 2011
    1. And that's the trick.... , Jun 14, 2011
      1. Shop work. , Jun 14, 2011
  3. 4140 milling.... , Jun 13, 2011
    1. IF it's annealed properly. Anonymous Coward, Jun 14, 2011

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