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Tractor Talk Discussion Board

Re: Old machine, new method - laser cutting gaskets


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Posted by DR. EVIL on October 21, 2020 at 11:39:05 from (174.192.81.90):

In Reply to: Old machine, new method - laser cutting gaskets posted by WI Dan on October 21, 2020 at 10:49:46:

I'd think a photo capture would be about as accurate as you could get. About 20 years ago I had the
exact same situation but was a rubberized paper gasket material. The part that took the longest was
getting information from the gasket material maker that the material would not catch fire and smoke and
foul up the lenses of the laser. Once we had that I had my ten new perfect gaskets the next day. I had
a round pipe flange gasket, with 6 smaller holes that just touched the outside edge of the OD, but did
not break through. Any kind of punch or hard tool pulled or moved the gasket material and ruined the
gaskets. A waterjet was going to be my last resort, but still has tool pressure. The QA inspector came
up to my cubical and congratulated me on buying a perfect example of an almost impossible to make part.

I would caution you on lasering cork, it's a decayed tree bark, possibly flammable, and brittle. Plus
it's a TERRIBLE gasket material. Bend it slightly and it breaks. A cork filled rubber composite is a
good gasket material.

I absolutely hated the cork valve cover gaskets on my small block Chevy in my first car. Oil pan
gasket was a leaker too.


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