On Aug 8, 7:07 pm, cavelamb himself wrote:
Fred the Red Shirt wrote:

On Aug 8, 5:51 am, cavelamb himself wrote:

Fortunat1 wrote:

cavelamb himself wrote in
hlink.net:

Fortunat1 wrote:

I have access to a plating facility (aviation, but it's a jet engine
rebuild shop) where I can get my wing fittings plated. My
understanding is that 4130 cad plating is just that, cadmium and
nothing else, but this shop does it's cad plating by a coating of
nickel first and then cad plating.. I'm reluctant to do this for the
obvious reasons until I find out what the story is...
Anyone know?

You might want to research "Hydrogen embrittlement".

Yeah, I was aware of hydrogen embritlement which is why I asked...

I repeat,

You might want to research "Hydrogen embrittlement"

to counteract it...

And I repeat that the link he provided is to a process that is
not plating.

....

All right now.

I'm not trying to be huffy, but clicking on a link is not exactly
my idea of proper research of a critical detail.

Indeed. However OP wrote:

" Actually, I was mistaken about the nickel. This is the actual
process;
http://www.sermatech.com/documents/sts40_sermetel1207.pdf"

Now, if that IS the actual process, then he was mistaken about
the cadmium as well as the nickel. If that is the process the
shop has suggested for his parts, then no information about
cadmium plating will be relevant because they aren't going
to cad plate his parts.

That would be like researching butyrate dope to prepare to paint
your plane with latex house paint.


Nor is accepting any wisdom posted here without further checking...

First off, ask the plating guys about embrittlement.

I disagree. First of all, he needs to understand what the
shop will to do to his parts. Asking the guys about
hydrogen embrittlement makes no sense if they use
sermetel coating. And if they do, they no doubt can
say that hydrogen embrittlement is not a problem, which
could leave OP dangerously confused if he still thinks
that semetel coating is cadmium plating.

If they know what's what, then what's the problem?

The problem would appear to be that _OP_ doesn't
know what the shop does. Quite frankly, it
sounds like a paint shop, not a plating shop.
It may be that they don't do ANY plating at all.

And it thy don't, then don't go there!!!

But maybe they are a very good paint shop, eh?


Secondly, Google is, and always will be, your friend.

Ok?


Yes. Google OP's original articles.

--

FF