herchammer

I have an old 70 pound anvil, (small, but the only thing I've got), for years my father used it. It had a piece of steel welded over the original face, and the weld has finally broken. The fellows in the machine shop have offered to mill the face, and true-up the sides. At this point, I do not intend to try another over-lay on the face. My question is: What, if any effect will this have on the hardness of the anvil? Should it be heat treated after the milling process? I'm very curious to hear what wisdom and experience have to say. Thanks John

Just a note to say hello to all of you, I've been reading the various posts for the past few days and I believe I've found a great resource here. I am just beginning to put my forge together, and it's been slow going. My father planted the seed of interest in smithing several years ago, and it has grown (my wife might say like a noxious weed). I've finally scraped enough together to get rollin'. 'Can't wait!