Re: distortion query

"Roy J" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> First person to agree with me all day! And only a 50% chance of
> disagreeing. But it does look like all the heat will be applied
> to one side of the neutral plane, sure fire way to warp it. And
> it always seeks the heat, just like a moth.
>
The whole assembly hangs on large chain criss crossed to be flexible.  It
isn't a swiss watch but one likes to make a nice looking product.
I figure the neutral axis is about an inch or so above the plate in the
stiffeners.
The two vertical ribs are skookum to say the least.  They are 5/8 plate
strips welded into a channel before mounting on the plate.  I set them back
to back with 3/4 inch spacers at each end.  My foreman figured I had set too
much of a prebend and I was thinking I should have put in one inch spacers.
We came out almost dead on so I didn't get my pie and I didn't have to pay.
This time Roy, I am alone in the shop.
    I joked that I could almost taste that pie.  When you think about it it
would be easy for the drawing office to indicate neutral axis on the print.
It would help when deciding where to locate your lifting hooks/lugs as well
as give you a hint of how the shrinkage forces will act in a leverarm.
 We only need little 1/4 inch fillets.  That will limit distortion in any
case.
Randy