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Groups > sci.engr.joining.welding > #13660

Re: Getting More First Minutes Out of A Flap Disc

Cross-posted to 2 groups.

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Bob Engelhardt <BobEngelhardt@comcast.net> writes:

> I thought that flap discs worked by having the used-up edges wear away
> and expose new grit.  But that never happens for me.  The various
> things that I've tried to expose new grit have never worked.  So
> either I'm missing something or they just don't work that way.  If I'm
> missing something, I would really appreciate being clued in.  If they
> don't work that way, what is the point of having flaps?

I think I know what you and Bob are saying.

Answer is - sorry - don't know.

With a "hard" side-grinding disk - an angle-grinder "carborundum" disk
- if it gets blunt and clogged from lightly skimming over big-area
flat surfaces, you can sharpen it by crudely "wiping" the disk along
the edge of some chunky iron.  Small area and big force = rip at the
disk surface.  Have a heavy offcut of piece of scrap to-hand to
re-sharpen your grinding disk on.

I don't know of the same with a flap disk.
I've known them never clogging due to the flap construction and never
getting blunt through wearing-away and progressively exposing new
grit.
Do try the same trick of "wiping" harshly along a narrow edge on some
scrap?

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Getting More First Minutes Out of A Flap Disc Bob La Londe <none@none.com99> - 2022-05-11 08:41 -0700
  Re: Getting More First Minutes Out of A Flap Disc David Billington <djb@invalid.com> - 2022-05-11 17:20 +0100
    Re: Getting More First Minutes Out of A Flap Disc "Jim Wilkins" <muratlanne@gmail.com> - 2022-05-11 13:34 -0400
      Re: Getting More First Minutes Out of A Flap Disc Clifford Heath <no.spam@please.net> - 2022-05-12 09:39 +1000
      Re: Getting More First Minutes Out of A Flap Disc Mike Spencer <mds@bogus.nodomain.nowhere> - 2022-05-12 00:37 -0300
        Re: Getting More First Minutes Out of A Flap Disc "Jim Wilkins" <muratlanne@gmail.com> - 2022-05-12 07:07 -0400
        Re: Getting More First Minutes Out of A Flap Disc David Billington <djb@invalid.com> - 2022-05-12 16:03 +0100
          Re: Getting More First Minutes Out of A Flap Disc "Jim Wilkins" <muratlanne@gmail.com> - 2022-05-12 12:04 -0400
        Re: Getting More First Minutes Out of A Flap Disc "Jim Wilkins" <muratlanne@gmail.com> - 2022-05-13 06:52 -0400
    Re: Getting More First Minutes Out of A Flap Disc Bob La Londe <none@none.com99> - 2022-05-11 10:59 -0700
      Re: Getting More First Minutes Out of A Flap Disc David Billington <djb@invalid.com> - 2022-05-11 19:05 +0100
  Re: Getting More First Minutes Out of A Flap Disc Cydrome Leader <presence@MUNGEpanix.com> - 2022-05-11 16:56 +0000
    Re: Getting More First Minutes Out of A Flap Disc Bob La Londe <none@none.com99> - 2022-05-11 10:08 -0700
    Re: Getting More First Minutes Out of A Flap Disc Dirtcrasher <83b08c0a764e217c41bda109411634c3@example.com> - 2023-11-06 04:02 +0000
  Re: Getting More First Minutes Out of A Flap Disc "Jim Wilkins" <muratlanne@gmail.com> - 2022-05-11 13:23 -0400
    Re: Getting More First Minutes Out of A Flap Disc Bob La Londe <none@none.com99> - 2022-05-11 10:58 -0700
      Re: Getting More First Minutes Out of A Flap Disc Snag <Snag_one@msn.com> - 2022-05-11 15:30 -0500
        Re: Getting More First Minutes Out of A Flap Disc Bob La Londe <none@none.com99> - 2022-05-11 13:59 -0700
          Re: Getting More First Minutes Out of A Flap Disc Snag <Snag_one@msn.com> - 2022-05-11 17:52 -0500
        Re: Getting More First Minutes Out of A Flap Disc "Jim Wilkins" <muratlanne@gmail.com> - 2022-05-11 18:14 -0400
      Re: Getting More First Minutes Out of A Flap Disc "Jim Wilkins" <muratlanne@gmail.com> - 2022-05-11 17:30 -0400
  Re: Getting More First Minutes Out of A Flap Disc Clifford Heath <no.spam@please.net> - 2022-05-12 09:38 +1000
  Re: Getting More First Minutes Out of A Flap Disc Bob Engelhardt <BobEngelhardt@comcast.net> - 2022-05-11 22:29 -0400
    Re: Getting More First Minutes Out of A Flap Disc Richard Smith <null@void.com> - 2022-05-12 09:07 +0100
    Re: Getting More First Minutes Out of A Flap Disc Dirtcrasher <83b08c0a764e217c41bda109411634c3@example.com> - 2023-11-06 04:02 +0000
  Re: Getting More First Minutes Out of A Flap Disc Bob La Londe <none@none.com99> - 2022-05-12 11:30 -0700

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