The previous discussion a few weeks ago about WAFs, and laser cutting, heat
treating, etc, didn't set well with me. So today I finally found out why. As
it turns out, 4130 steel air normalizes. That means that if you heat it up,
and then just let it sit out to cool down, you have returned it
I tried to make this point many times, but didn't get accross the process, I
have welded 4130 with acetylene torch ( my landing gears)and they are just
fine. Some oxidation by the weld but they clean up with a a little sand
blasting with micro beads. Heat treating is unnecessary and extra expens
ist.net]On Behalf Of
Mark Youkey
Sent: Thursday, May 01, 2003 1:40 PM
To: KR
Subject: KR>Reattack on WAF's, and Antenna website
The previous discussion a few weeks ago about WAFs, and laser cutting, heat
treating, etc, didn't set well with me. So today I finally found out why.
As it tur
r .. EAA Tech Counselor 4125
>mailto: rfreiber...@swfla.rr.com
>
>-Original Message-
>From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of
>Mark Youkey
>Sent: Thursday, May 01, 2003 1:40 PM
>To: KR
>Subject: KR>Reattack on WAF's, and Antenna
> >Mark Wrote;
> >So, my point is, no matter how you make the holes in your WAF's, whether
>it
> >be waterjet, laser cutting, drilling, or shooting a bullet through them,
> >there is no reason to worry about the heat affected zone, or losing the
>heat
> >treatment
Mark, and others, would you be
I have been following this thread and swore I wouldn't get into it. Oh
well, I have never been one to sit on the sidelines.
I have no qualifications what so ever to base this on but that doesn't
seem to be stopping anyone else. As I understand what is being said,
you can heat a piece of 4130
Steve Eberhart wrote:
> I don't know the answers and I bet most of the posters to this thread
> don't either. If it were me I would track down an engineer with
> experience in this area.
Well, you know me. I have no qualms about bothering other people to find
out what I want to know, so I took
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