View Single Post
  #7  
Old 04-23-2017, 08:31 AM
97 SL320 97 SL320 is offline
Registered User
 
Join Date: Jan 2012
Posts: 7,534
Quote:
Originally Posted by tyl604 View Post
Never really knew why. Was it called annealing?
Yes, when metal is cold worked it gets hard, heating it up to a critical temperature softens it.
Reply With Quote