slitting saw going the wrong way
Close
Login to Your Account
Results 1 to 6 of 6
  1. #1
    Join Date
    Feb 2010
    Location
    ch
    Posts
    2,431
    Post Thanks / Like
    Likes (Given)
    211
    Likes (Received)
    314

    Default slitting saw going the wrong way

    i just cut a slot in crs 20 mm long and 20 mm deep with a 4 mm hss saw. little horizontal sounded good, chips looked good. then the nut unscrewed and i realized i was running the saw the wrong way. when i changed direction the chips looked about the same. what are all those fancy angles for on the cutters? (maybe there is some magic to a swiss alesa saw?)

    edit: to be clear, the saw rotated the wrong way.

  2. #2
    Join Date
    Jan 2007
    Location
    Norfolk, UK
    Posts
    19,613
    Post Thanks / Like
    Likes (Given)
    15059
    Likes (Received)
    15223

    Default

    Dunno - I'm not that lucky.

  3. Likes Hopefuldave liked this post
  4. #3
    Join Date
    Mar 2017
    Country
    LATVIA
    Posts
    510
    Post Thanks / Like
    Likes (Given)
    131
    Likes (Received)
    256

    Default

    "fancy angles" have little to do with the "wrong way" in this case (which I'm guessing is feed direction, not tool rotation), general construction of the machine and the condition it is in will have an effect if the saw cut in climb or conventional way, but if it performed equally in both directions, then I'd say the machine is in decent condition

  5. #4
    Join Date
    Oct 2010
    Country
    UNITED STATES
    State/Province
    Oregon
    Posts
    5,290
    Post Thanks / Like
    Likes (Given)
    4737
    Likes (Received)
    1938

    Default

    Tool rotation, jz79. "then the nut unscrewed".

    dian, I've no idea. I would have expected a huge squealing, a lot of feed pressure, way too much heat, and not a whole lot of chips. You can remove metal with a rock, so I can see where teeth running backwards might remove some metal, but I'd not expect normal looking chips.

  6. #5
    Join Date
    Mar 2017
    Country
    LATVIA
    Posts
    510
    Post Thanks / Like
    Likes (Given)
    131
    Likes (Received)
    256

    Default

    hmm, must have missed the nut coming loose part the first time I red this, or he added that later in edit, because I recall only "normal chips in the wrong direction", which is impossible in CRS with a slitting saw teeth running backwards, hence I concluded it was about feed direction - that would be the only way to get chips looking the same way while doing something "backwards"

  7. #6
    Join Date
    Apr 2012
    Location
    antelope ca
    Posts
    15
    Post Thanks / Like
    Likes (Given)
    15
    Likes (Received)
    2

    Default

    just like running a lathe with a threaded spindle in reverse, the cutting pressure tends to loosen the thread


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •