Casting a cylinder

[dallen]

a shell will grow in both directions how much I don't know but a asphalt drum mixer in the 400 tph range will grow in length about 3 inches not sure on the diameter.

thanks for the link.

[mite5255]

http://hyperphysics.phy-astr.gsu.edu/hb ... thexp.html

Here's some equations for thermal expansion, shinkage is the same amount as it cools. A hole in a plate will become smaller as it heats, but I believe a cylinder will have a larger ID when heated, like a bearing race you heat so it will fit on a shaft. I think you treat a cylinder as a flat surface plate.

Thanks for that

Mike

[Jammer]

Hmm, I looked back over the formula and I said it wrong. A hole in the plate will get larger also, the same as the plate expands.