End Mill regrinding
 

I am slightly confused. Please forgive me. Are "tool and cutter
grinders" used to sharpen spiral fluted endmills?

i

End Mill regrinding
 

Ignoramus32324 wrote:
I am slightly confused. Please forgive me. Are "tool and cutter
grinders" used to sharpen spiral fluted endmills?


Yes

--
John R. Carroll

End Mill regrinding
 

On Tue, 04 May 2010 21:50:01 -0500, Ignoramus32324
wrote:

I am slightly confused. Please forgive me. Are "tool and cutter
grinders" used to sharpen spiral fluted endmills?

i


Hey Iggy,

Yes, but you'll probably want an air spindle to make it easy to do.

Brian Lawson

End Mill regrinding
 

On May 4, 10:50*pm, Ignoramus32324 ignoramus32...@NOSPAM.
32324.invalid wrote:
I am slightly confused. Please forgive me. Are "tool and cutter
grinders" used to sharpen spiral fluted endmills?

i

I'm slightly confused too. Are you asking about buying a T&C grinder
or resharpening your end mills?

You can grind the cutting edges on end mills, taps, reamers and
horizontal milling cutters reasonably well on a standard surface
grinder with simple fixtures.

Grinding the end makes little difference, but if you sharpen the
spiral flutes you have to measure, record and adjust for the reduced
diameter, or use them for roughing cuts and the first pass on slots.

jsw

End Mill regrinding
 

Ignoramus32324 wrote:

I am slightly confused. Please forgive me. Are "tool and cutter
grinders" used to sharpen spiral fluted endmills?

i


That is a yes as long as you have the right tooling. I've sharpened a bunch by only doing
the ends using a fairly cheap fixture from Enco.

The end of a end mill cuts no matter now deep you go so the flutes may be good if you
grind the end mill back and sharpen the end.

This is a time and money thing. So far, other than the cheapy enco fixture I use to
salvage the low hanging fruit so to say, I just buy replacements as I wear end mills out.
I don't even own a surface grinder, I use uncles old rockwell surface grinder. The type
that has a round post and bronze bearings.

Make sure you are not getting into false economy by spending money on a grinder and
accessories that will cost more than you would spend on new end mills.

Now if you get a smoking deal like you tend to do, well, if you get bored with it, you can
get your money back. I'm sure you know how to.

I've heard he who dies with the most toys wins but I tend to think he who played with the
most toys won.

Wes
--
"Additionally as a security officer, I carry a gun to protect
government officials but my life isn't worth protecting at home
in their eyes." Dick Anthony Heller

End Mill regrinding
 

On 2010-05-05, Ignoramus32324 wrote:
I am slightly confused. Please forgive me. Are "tool and cutter
grinders" used to sharpen spiral fluted endmills?

Those, straight fluted ones, reamers, conventional mills
(wheels) and all kinds of other things.

They can also be used to profile a conventional mill to product
a specific shape and angle should you need to do a lot of parts. It
saves you having to set up the workpiece at a strange angle each time.

I wish that I had one. :-)

Enjoy,
DoN.

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