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Thread: guess what cutting tool made this cut

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  1. 01-22-2009, 02:25 AM #1
    dan s
    dan s is offline Senior Member
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    Talking guess what cutting tool made this cut

    I just finished up in the shop, and I was surprised at how smooth this surface turned out. Take your best guess at what cutting tool produced this surface finish. For reference the part is 7075-T6 1.5" wide by 2" long.

    -Dan S.
    dans-hobbies.com
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  2. 01-22-2009, 02:48 AM #2
    small.planes
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    Shaper?

    Dave
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  3. 01-22-2009, 03:24 AM #3
    macona
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    cutting tool or machine?

    Looks like a face mill with the head out of tram.
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  4. 01-22-2009, 04:57 AM #4
    Evan
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    It's a shaper. There are slight parallel lines running the long direction of the part. Not a bad finish but much more can be done.

    7075-T6 will produce mirror finishes with the right tooling. It's very hard, about 20% harder than mild steel. It's the one type of aluminum where the swarf cuts you.

    Shapers can produce some interesting finishes.

    Here are some examples on steel:

    This first is the finish from a regular finish cut in mild steel.



    Next we have some fancier finishes.





    L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
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  5. 01-22-2009, 05:13 AM #5
    .RC.
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    Amazing finish on those parts Evan, how did you get them so white you cannot even see them on the screen???
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  6. 01-22-2009, 05:35 AM #6
    Evan
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    Must be your new internet filter system in operation. They show up fine here.
    L&S Industries sells grinding wheels Made In USA, all types and sizes. Also Superabrasive diamond and CBN wheels, no extra cost for custom wheels, Made in Canada. 10% discount for HSM members. Call Janet 250-392-3393 08:00-12:00, 13:00-15:00 M-F Pacific Paid Ad, updated Apr 01 2013
    update 2013/3/31 . Free software for calculating bolt circles and similar: Origin now settable to bottom left! All values positive. Click Here
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  7. 01-22-2009, 05:57 PM #7
    Silverback
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    what caused the 2 lines across the face?
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