Heat treating wing ribs

[Holger Stephan]

Here is a question I am asking for a friend. He bought these 2024-T0 wing
ribs and wants to have them heat treated. He is in near L.A., CA and
couldn't find a shop that would do anything thinner than .04".

Does any of you know how to heat treat formed ribs and possibly know a shop
in the L.A. area? My friend is especially concerned about getting them
straight again after they came out of the oven.

Thanks a bunch!

Holger

[Bela P. Havasreti]

On Sun, 01 Feb 2004 12:02:02 -0800, Holger Stephan
> wrote:

Can't help you on heat treat shops in LA, but the one I go to
here (in the Seattle area) has no problem doing material down
to .025.

Also, for no additional charge, they'll pack my parts in a box
of dry ice to keep them in W condition (I think that's what it's
called) so they won't harden up right away. That way you
can bring them home and you get about 96 hours to straighten
them before they fully harden up.

Good luck in finding a heat treat shop down there that will work
(there has to be scads of them in the LA area I would think.....).

Bela P. Havasreti

>Here is a question I am asking for a friend. He bought these 2024-T0 wing
>ribs and wants to have them heat treated. He is in near L.A., CA and
>couldn't find a shop that would do anything thinner than .04".
>
>Does any of you know how to heat treat formed ribs and possibly know a shop
>in the L.A. area? My friend is especially concerned about getting them
>straight again after they came out of the oven.
>
>Thanks a bunch!
>
>Holger

[Holger Stephan]

Bela P. Havasreti wrote:
> On Sun, 01 Feb 2004 12:02:02 -0800, Holger Stephan
> Can't help you on heat treat shops in LA, but the one I go to
> here (in the Seattle area) has no problem doing material down
> to .025.
> ...
> Bela P. Havasreti

Thanks, Bela (are you Hungarian?)! That's pretty good information. Seattle
may work too. I am in Portland and if he can't find anything down there he
could send them to me. What is the name of that shop?

- Holger

[Franklin Newton]

"Holger Stephan" > wrote in message
...
> Here is a question I am asking for a friend. He bought these 2024-T0 wing
> ribs and wants to have them heat treated. He is in near L.A., CA and
> couldn't find a shop that would do anything thinner than .04".
>
> Does any of you know how to heat treat formed ribs and possibly know a
shop
> in the L.A. area? My friend is especially concerned about getting them
> straight again after they came out of the oven.
>
> Thanks a bunch!
>
> Holger
There are several vendors located in the LA area that are Boeing qualified
for aluminum heat treating, Astro, Alumax, Newton being some I recall and
yes, you would want them shipped back in coindition "W"( in dry ice) so you
can restrike them to straighten, then allow them to go to room temp and T4
condition. Note: you have to restrike them almost immediatly after removal
from the 0 degrees temp.

[Bela P. Havasreti]

On Sun, 01 Feb 2004 13:52:00 -0800, Holger Stephan
> wrote:

>Bela P. Havasreti wrote:
>> On Sun, 01 Feb 2004 12:02:02 -0800, Holger Stephan
>> Can't help you on heat treat shops in LA, but the one I go to
>> here (in the Seattle area) has no problem doing material down
>> to .025.
>> ...
>> Bela P. Havasreti
>
>Thanks, Bela (are you Hungarian?)! That's pretty good information. Seattle
>may work too. I am in Portland and if he can't find anything down there he
>could send them to me. What is the name of that shop?
>
>- Holger

Yes. Both Mom 'n Pop are '56-ers.

The Seattle area heat treat place I go to is called AlMet. They
are in Kent, and they are also a MilSpec qualified heat treat
facility (the local Boeing plants offload many parts to Almet).
All I have is a phone number for them:

253-852-1690.

Bela P. Havasreti

[Holger Stephan]

Bela P. Havasreti wrote:
> On Sun, 01 Feb 2004 13:52:00 -0800, Holger Stephan
> ...
> Yes. Both Mom 'n Pop are '56-ers.
>
> The Seattle area heat treat place I go to is called AlMet. They
> are in Kent, and they are also a MilSpec qualified heat treat
> facility (the local Boeing plants offload many parts to Almet).
> All I have is a phone number for them:
>
> 253-852-1690.
>
> Bela P. Havasreti

Thanks to Bela and Franklin! Nice how RAH works.

Beautiful country your parents come from, Bela. My father was born and
partly grew up in Pecs. There are still some churches with frescos by my
grandfather; I hope to see them one day.

- Holger

[guynoir]

Stack Metallurgical Services, located on Swan Island.

Holger Stephan wrote:
> Bela P. Havasreti wrote:
>
>>On Sun, 01 Feb 2004 12:02:02 -0800, Holger Stephan
>>Can't help you on heat treat shops in LA, but the one I go to
>>here (in the Seattle area) has no problem doing material down
>>to .025.
>>...
>>Bela P. Havasreti
>
>
> Thanks, Bela (are you Hungarian?)! That's pretty good information. Seattle
> may work too. I am in Portland and if he can't find anything down there he
> could send them to me. What is the name of that shop?
>
> - Holger

--
John Kimmel


I think it will be quiet around here now. So long.

[All Thumbs]

I'm Holgers'friend with the ribs. I actually live south of L.A. in
Orange County,CA. The company I called, Bodycote, says they can
straighten the ribs after treating if I can provide a form. I would
really prefer to have it done by them. Is that advisable? I can't
picture myself working under the gun to straighten 24 ribs when I've
never done it before, and there's a limited time before the ribs
harden.

Craig

[Richard Lamb]

All Thumbs wrote:
>
> I'm Holgers'friend with the ribs. I actually live south of L.A. in
> Orange County,CA. The company I called, Bodycote, says they can
> straighten the ribs after treating if I can provide a form. I would
> really prefer to have it done by them. Is that advisable? I can't
> picture myself working under the gun to straighten 24 ribs when I've
> never done it before, and there's a limited time before the ribs
> harden.
>
> Craig

I must have missed the memo...

What airplane are you building that calls for heat treated ribs????

Richard

[All Thumbs]

Richard Lamb > wrote in message > I must have missed the memo...
>
> What airplane are you building that calls for heat treated ribs????
>
> Richard

I am re-building a BD-4 with metal wings. I purchased the ribs from
a vendor. They are .032 2024 T0 aluminum. The vendor told me up
front that his attempts to heat treat these ribs had resulted in
cracking, although we did not discuss what method he used. Since then
I've been told that aside from being structurally unsound, "0"
condition aluminum will be difficult to rivet due to it's softness.
I'm hoping that some heat treater in So Cal will have the experience
to treat these without destroying them.

Craig

[Richard Lamb]

All Thumbs wrote:
>
> Richard Lamb > wrote in message > I must have missed the memo...
> >
> > What airplane are you building that calls for heat treated ribs????
> >
> > Richard
>
> I am re-building a BD-4 with metal wings. I purchased the ribs from
> a vendor. They are .032 2024 T0 aluminum. The vendor told me up
> front that his attempts to heat treat these ribs had resulted in
> cracking, although we did not discuss what method he used. Since then
> I've been told that aside from being structurally unsound, "0"
> condition aluminum will be difficult to rivet due to it's softness.
> I'm hoping that some heat treater in So Cal will have the experience
> to treat these without destroying them.
>
> Craig


Ok, I can understand that.

However, for homebuilt construction, that is so far out of line I
can't quite figure out how to say it politely...

Forming ribs in a pair of form blocks will cause the rib to be a
little bit curved because of the stretched metal in the flange
area.

Usually the curve is corrected with a pair of fluting pliers which
are used to put small dents in the flange, thus pulling the rib
straight.

I don't claim to have studied every design in the homebuilt arena,
but I can't think of a single amateur built design that calls for
ribs to be formed in O contition then heat treated.

Sounds like a rip-off to me...

How about naming the "vendor" so nobody else gets burned.

Richard

[All Thumbs]

Buying the ribs untreated was my decision, I had full knowledge, so I
don't consider this a rip-off. If anything, I am guilty of being
arrogant enough to think I could do it better. I bought Pazmanys'
book about building, and his ribs were formed the same way. For all I
know, the vendor, a fellow BD flyer, would take the ribs back. I want
to make this work, I just want to know to know how (or where) to do
it.

Craig

[Bob Kuykendall]

[apologies if this is a re-post; Google acted like it lost the first
one]

Earlier, Richard Lamb > wrote:

> I don't claim to have studied every design in the homebuilt arena,
> but I can't think of a single amateur built design that calls for
> ribs to be formed in O contition then heat treated.

I can name two: Pazmany PL-1 and PL-2.

Techniques for forming and straightening, and advice on obtaining the
tempering services, are described in the Pazmany book "Light aircraft
construction for amateur builders" available through the Pazmany web
site:

http://www.pazmany.com/books/books.html

Thanks, and best regards to all

Bob K.
http://www.hpaircraft.com

[Richard Lamb]

All Thumbs wrote:
>
> Buying the ribs untreated was my decision, I had full knowledge, so I
> don't consider this a rip-off. If anything, I am guilty of being
> arrogant enough to think I could do it better. I bought Pazmanys'
> book about building, and his ribs were formed the same way. For all I
> know, the vendor, a fellow BD flyer, would take the ribs back. I want
> to make this work, I just want to know to know how (or where) to do
> it.
>
> Craig

Ok, well, best of luck.
Have you found a place that con do them?