Horseshoeing is easier

So I'm back with an Update. It looks like it's been 5-6 months since my original post. So, I fit a handle that day, thought I'd have a nice little souvenir, set it next to my rasp snakes and what have you, and just be proud. But then I got to thinking.... who cares if she explodes on me?! Might as well see if this dog hunts! So for the last 5-6 months, it's been my day in day out rounding hammer, hot shaping, cold shaping, turning 3/8x1 toe weighted shoes COLD! It's literally the best hammer I've ever used!! I definitely tempered it back a little too much, but I'll take a flat spot on my round side, over dents in my relatively new 160# JHM, or a chip flying off into a horses chest any day! More farrier turning blacksmith in the future

Thanks guys! I appreciate the knowledge and experience that I expected to get. I'm saddened that I made such a bone head move. I will retire it, but I'm going to fit a handle for show. I'm already slowly starting my next 2#er, and will be much smarter. Also, I ended up tempering in the gas oven 400° for 2 hours, till I got a nice brown/purple. But all I seem to see online is to temper with a hot drift. Is that the best way? I'm not spending big $ on a temper oven, I'm doing this for my own tools, not to sell. Quickly, since you asked, I'm a 37 yr old horseshoer from Illinois. I've made a few hoof knives, this hammer, and random little things. Along with handmade show shoes 3/8x1, 1/2x1 1/4......

First hammer head, didn't turn out too bad. I hardened it, and like an impatient boy, I bounced it, lightly, on the anvil a couple times. I have 2 cracks now. They run from the cheeks to the face. I just tempered it, cause who cares at this point. But is it weldable? I have mig and arc, would I have to grind a groove in the cracks? xxxxxxxxx Would I need to anneal first then reharden and temper?