Using End Mill For Side Milling

[Skibo]

I know the difference but some of these explanations had me scratching my head. Royesses picture easily shows the difference.
Thanks ron

A pictures worth a thousand words

 

[visenfile]

Is "mild steel" hardenable ? I thought it got its name because the carbon content was too low to harden. I know that tin can lid bending will "harden" the material at the facture area. Perhaps a matter of degree, how deep?

 

[kizzap]

From what I have read, (and by all means I am not an expert in this, go do some research), is that mild steel on it's own is not really able to be hardened. However you can case harden mild steel, which involves impregnating the steel with some form of carbon