Hey everyone, been thinking about some things lately. One of them is ways to make certain metal parts harder. I have found info on cryo treating, shot peening, and induction hardening. I would like to know what anyone thinks on these processes. Specifically, induction hardening, I stumbled across it l8ly (fords new truck commercial lol) and want more info. Cryotreating on average makes a part 100 % stronger, shot peening is about 300 % stronger. I have found no average for induction hardening, and was curious if any one has any direct experience, or info etc.