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  1. #1
    Erfahrener Benutzer
    Join Date
    Feb 2004
    Posts
    427

    Machining pan brake fingers? How hard are they?

    The old pan brake at work has seen better days. All the fingers are mushed up and not flat any more.

    What machine would you need to fix them up again? I have no idea how hard the fingers are but they are probably not mild steel.

    Could you re machine them on a knee type mill using a face mill? Obviously they can be fixed some how.

    Has anyone ever fixed these before? Also I don't think there is any adjustment in them. Once you cut off 1/8" or so, the tip of the finger is no longer where it was. So the bends won't be like they should be. Would you re weld some metal back on to them? if so what grade filler? 400, 700 etc?

    Peter
    My little site on MIG welding http://www.learn-how-to-weld.com/mig-welding/

  2. #2
    Member
    Join Date
    Jun 2007
    Posts
    3735
    Weld 1/8" spacer to top edge and take 1/8" off the bottom.
    regardless of how hard, a carbide cutter should do it easily.
    Hit original edge with a file and you will soon see how hard.
    You might need to flame harden the edge again.
    Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.

  3. #3
    Gold Member
    Join Date
    Jul 2005
    Posts
    12177
    Before going to the effort of welding on spacers or building up the end with weld have a good look at the design of the finger carrier of the brake. I had a small pan brake with an eccentric pin at the pivot point so the entire carrier could be adjusted back and forth.
    An open mind is a virtue...so long as all the common sense has not leaked out.

  4. #4
    Registered
    Join Date
    Mar 2012
    Posts
    102

    Re: Machining pan brake fingers? How hard are they?

    Also: Do your due diligence and check how much replacements would cost, just to make sure that you're not working on repairing it for the equivalent of $2 an hour.

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