Safe to dress wheel heavily clogged with aluminum? - Page 2
Close
Login to Your Account
Page 2 of 2 FirstFirst 12
Results 21 to 23 of 23
  1. #21
    Join Date
    Sep 2015
    Country
    UNITED STATES
    State/Province
    Tennessee
    Posts
    498
    Post Thanks / Like
    Likes (Given)
    248
    Likes (Received)
    385

    Default

    LOTO the power to it.

    As for the wheels, I'd replace them. I got a lot more cautious when a buddy of mine lost an eye to a wheel letting go a year before last. They might be fine, but I wouldn't bet my or some kids sight on "might".

  2. #22
    Join Date
    Jul 2018
    Country
    UNITED STATES
    State/Province
    New Hampshire
    Posts
    31
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    6

    Default

    How about this:
    When you find a wheel with aluminum on it, take it off the grinder and
    leave it that way. Put a file or piece of sand paper next to the grinder.
    When one of the kids asks tell them that the stone becomes unsafe when used
    with aluminum. Say that it will take a while to get a new stone.

    Since this will inconvenience both the conscientious students and the
    screw-ups social pressure should solve the problem.

  3. Likes dalmatiangirl61, Scottl, Paolo_MD liked this post
  4. #23
    Join Date
    Oct 2010
    Country
    UNITED STATES
    State/Province
    Oregon
    Posts
    5,031
    Post Thanks / Like
    Likes (Given)
    4217
    Likes (Received)
    1812

    Default

    To give closure to this thread, I tried the angle-grinder-on-rotating-bench-grinder technique and it worked fine. I ordered some grinding wheels for aluminum, but they still haven't arrived, so I used a conventional reinforced T27 1/8" wheel on a 4/5" angle grinder. It cleaned off the surface of the bench grinder wheels pretty quickly (seconds), and I followed up with a standard Huntington-type (star wheel) dresser. There were a few small, scattered specks of foreign material left in the wheel surface, but I was content to leave things at that point.

    Make a huge cloud of dust and grit, of course. We'd taken both grinders outdoors for the dressing, and that was clearly the right decision. :-)

    We still have to figure out how to better train the kids, which is hard as this shop is used for a variety of different classes in addition to the robotics team activity, so there is no individual (student or adult) around continuously, and any slob can turn on the grinder and smear aluminum, wood or plastic into the wheels.

  5. Likes Paolo_MD liked this post

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
  •