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## Main Question or Discussion Point

How does thermal expansion effect the diameter of a hole in a sheet metall,

When we r dealing with length it is quite easy since then it is only the propotion of change in lengt, and there r standard formulas for this ...

But how do you do for a hole in a sheet metal who are free to expand, lets say steel and the hole r 4 mm ...

Anyway you comments are dearly appriciated!

When we r dealing with length it is quite easy since then it is only the propotion of change in lengt, and there r standard formulas for this ...

But how do you do for a hole in a sheet metal who are free to expand, lets say steel and the hole r 4 mm ...

Anyway you comments are dearly appriciated!