I usually start buy cleanning in petrol to make sure all the wood is out of the gaps.
I lay it back and foward so that you have about 6 inch billet I just tie it in a couple of places with steel wire about 1/16 thick.
I find heat is the trick let the chain soak in the heat until all is up to welding heat. You will need to get the feel of that is you have not done it before. I usually make a couple of rough blades for letter openers for about 20 min while the whole forge is worming up.
Remember if you hit the chain and it welds keep going. If you hit it and it is not stiching or is starting tyo split apart again STOP hitting and re heat. Hitting it harder will not make a weld the correct heat makes the weld.
I have a couple of photos if you or anyone else wants a copy of the
initial stages of the process. Get the heat up to a lemon yellow or nearly white just red or orange does not work at all for me.
Tap the sides in fairly early to fill in the holes.
The more times you fold chain the more stringie it looks. I like to fold only once or twice.
reg_ellery@optusnet.com.au note between the g and e is _ not a blank.
Edit tongs or handle work with tongs you need to revers the way it goes in the forge to keep both ends the same. Or weld a handle on works fine.