Deburring sheet metal and filing edges?

[DL152279546231]

Anyone have any photo's or instructions for deburring holes for button rivets
and filing sheet metal edges? Although, I have ordered some scrap to practice
on I would like more information on how it is done, especially photos or
diagrams

[Richard Lamb]

DL152279546231 wrote:
>
> Anyone have any photo's or instructions for deburring holes for button rivets
> and filing sheet metal edges? Although, I have ordered some scrap to practice
> on I would like more information on how it is done, especially photos or
> diagrams


A good starting point would be getting copies of Bingelis' books.
I believe parts of them are even on line through EAA net services.

Or FAA publication AC-43-13 - acceptable methods, techniques and
practices.

Drilled holes will usually have a little flash around the hole.
For a few holes, a larger twist bit rolled by hand is fine.
Wrap the bit with masking tape to preserve your fingers.
(You've been warned!)

For a wing or such, get a proper deburring tool.
Best use both hands to start with.
Hold the shaft vertical with one hand and crank with the other.
Otherwise, the champher that you are making onthe edge of the hole
will be wobbled out unevenly.

Edge dressing aluminum sheet is an easy skill to learn, but hard to
master. Use a sharp fine file, slow even motion, and lots of pressure.

On thin sheet, a little curvature in the sheet will help hold the edge
straight and allow for long smooth finishing strokes.

You want the edge of the metal to end up square, even, smooth and
pretty.

Don't saw.

Have fun.


Richard