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Old 01-27-2010, 10:39 PM   #1
miker
 
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Default Which milling cutter for V groove??

I recently purchased a RF 45 copy and stocked up on End Mills, Slot drills. and Ball Nose endmills from CTC.

My question. Is their a cutter that will cut a V groove with a Vertical Mill?

I have done this with a Horizontal Mill at college with no problem.

Would the cutter for a Vertical Mill look something like a Countersink? I can't see one in the catalogues or
on CTC's site.

Rgds

Michael



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Old 01-27-2010, 10:48 PM   #2
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Default Re: Which milling cutter for V groove??

MELIN Drill Mill

http://www.use-enco.com/CGI/INPDFF?PMPAGE=131&PARTPG=INLMK32
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Old 01-27-2010, 10:58 PM   #3
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Default Re: Which milling cutter for V groove??

Michael,

To answer your question, yes you can get angled tipped milling cutters. I have a few in my arsenal.

Usually, at least on the ones I have, they don't go down to a sharp point, but end in a hole like in the end of an end mill. So really, when doing a 'V' groove, you normally put a small slot along the bottom of the cut to allow what is sitting in the slot to sit nicely against the 'V' sides.

The C-o-C should explain what I was on about.

Blogs

Posted at the same time as Tin's. His show them going to a point.

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Old 01-27-2010, 11:03 PM   #4
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Default Re: Which milling cutter for V groove??

Ahh... I thought that little flat relief was milled as a second operation
with an ordinary endmill.

Many thanks for the replies and C o C

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Old 01-27-2010, 11:41 PM   #5
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Default Re: Which milling cutter for V groove??

I find that a double-angle cutter (probably the same type you used on a horizontal milling machine) mounted on an appropriate arbor is the best solution for milling an angled-sided slot. The center of the V-tipped end mills is highly inefficient at removing material as it has a nearly zero SFM rate.

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Old 01-28-2010, 12:46 AM   #6
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Default Re: Which milling cutter for V groove??

For 90° grooves, use a regular end mill with the workpiece at 45° or the head tilted to 45°.

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Old 01-28-2010, 10:05 PM   #7
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Default Re: Which milling cutter for V groove??

Quote:
Originally Posted by Stan
For 90° grooves, use a regular end mill with the workpiece at 45° or the head tilted to 45°.
That works just fine for a single V groove BUT when you want two Vs separated by
an exact amount it gets VERY tricky. Sure it can be done and I have done it but as
I just said it is DIFFICULT! So I just got two, one a carbide, V cutters from ENCO
and they work a dream. I used the HSS one in Aluminum and the carbide one in steel
for a sliding fixture I just made a few weeks ago.
...lew...
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Old 01-29-2010, 10:32 PM   #8
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Default Re: Which milling cutter for V groove??

Quote:
Originally Posted by Lew_Merrick_PE
I find that a double-angle cutter (probably the same type you used on a horizontal milling machine) mounted on an appropriate arbor is the best solution for milling an angled-sided slot. The center of the V-tipped end mills is highly inefficient at removing material as it has a nearly zero SFM rate.
To phrase this another way, a friend of mine said "You can't spin a V-cutter fast enough".


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