Which milling cutter for V groove??

Discussion in 'General Engine Discussion' started by miker, Jan 27, 2010.

  1. Jan 27, 2010 #1

    miker

    miker

    miker

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    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
     
  2. Jan 27, 2010 #2

    Tin Falcon

    Tin Falcon

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  3. Jan 27, 2010 #3

    Blogwitch

    Blogwitch

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    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.

    v cutter.jpg
     
  4. Jan 28, 2010 #4

    miker

    miker

    miker

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    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 :)
     
  5. Jan 28, 2010 #5
    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.
     
  6. Jan 28, 2010 #6

    Stan

    Stan

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    For 90° grooves, use a regular end mill with the workpiece at 45° or the head tilted to 45°.
     
  7. Jan 28, 2010 #7

    Lew Hartswick

    Lew Hartswick

    Lew Hartswick

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    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...
     
  8. Jan 29, 2010 #8

    shred

    shred

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    To phrase this another way, a friend of mine said "You can't spin a V-cutter fast enough".
     

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