CNC Grinding

[Steve]

Anyone know anything about cnc grinding or found any great sources on it in books or otherwise? Specifically profiles in steels.

[Tom M]

Umm... That's sort of a broad topic.  What are you trying to do?

On Tue, Jan 17, 2017 at 5:34 PM, Steve <spi...@gmail.com> wrote:

Anyone know anything about cnc grinding or found any great sources on it in books or otherwise? Specifically profiles in steels.

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[Sevin Straus]

We have a number of CNC grinders of various sorts at work.  

If you are trying to grind a complex shape into steel, you generally use a wheel that has a profile on it to match what you want ground.  So if you are making moulding knives to cut your own mouldings for your house, you would create a wheel with the profile on it and grind your steel with that.

There are other multi axis type cnc grinders, but they tend to be for finishing a shape or very small detail work like medical devices.

Not sure if that is in the ballpark of what you are trying to do, but that was my best guess.

[Steve]

I kind of already knew that. Im looking at what it would take to make a cnc grinder for motion components like bearings and linear bearings. Im aware the precision needed is insane. .0001

[Sevin Straus]

THAT is very specialized equipment and is much higher tolerance than that.  .0001 (a tenth) would be bad precision for a bearing let alone a single needle.

[Tom M]

Don't bearing mfg cheat a bit when their tolerance s exceed there cababilities?  I seem to recall seeing some videos where finished bearings are sorted and grouped by size and then matched to races for appropriate fit.

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