Gear cutter

by Russ Kepler

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.... sniper1rfa, Jun 13, 2011
    1. And that's the trick.... Doc Nickel, Jun 14, 2011
      1. Shop work. Russ Kepler, Jun 14, 2011
  3. 4140 milling.... Redwing, Jun 13, 2011
    1. IF it's annealed properly. Anonymous Coward, Jun 14, 2011

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