Aluminum - Temperatures and Deformation

Deformation strain is related to the deformation stress.

http://en.wikipedia.org/wiki/Hooke%27s_Law

The characteristic changes shape with temperature. At the melting point, the shape reduces to a line at zero deformation stress.

http://en.wikipedia.org/wiki/Aluminium

How much deformation per day at which stress?

RHABE

Hi Mahendra,

Can you give a few more details about what grade of aluminum you want to use and its thickness. And what exactly are you wanting to use it for in an oven? Will it bell carrying a weight other than its own, like when you use it for a shelf? Or is it just for the box structure of the oven?

Good luck, and please get back to me.

Hi, It is Aliminium 6082, 508x406mm 12.7 mm thick, Well i dont have the information of whether there is any weight applied on the plate, I will collect the same from my customer. It is for testing purpose that is the information i have. I will get back once i have the details Thanks & Bye

Hello Mhendra,

Really appreciate the reply post, thank you!

Sounds like you are dealing with a good strong piece of 'ally' there! Most I have seen and used is ¼" (~6 mm).

I will get back to you soon.

Hello Mahendra,

I list below the detailed specs of the Aluminum you are using. the 6082.

Hope it helps. And any other questions you can pass on after the week end.

http://www.azom.com/Details.asp?ArticleID=2813

Good luck.

It does not. It can anneal though and lose some mechanical properties. Aluminum is routinely used for fry pans and other cookware that see much higher temperatures in routine use.

Dear Mahendra ,

It depends on the temper designation of the material.

If the material is condition "O" which is soft it will not take the load.

I suggest you go for condition T4 solution treated or T6 Solutionised and Precipitate hardened- conditions under which the alloy has the maximum strength.

200 deg C is the Precipitation temperature of the alloy and hence will not loose its mechanical properties when exposed to this temperature.

As the recommended ageing conditions range fro 170°C to 240°C, depending on alloy,

you will have very soon a considerable overageing with loss of strength.

So too it may not take the load.

Anything depends on how much load and resulting creep-velocity and on alloy and ageing conditions.

RHABE

Yes.

I agree with your observation considering the possibility of repeated exposure to this temperature.