Hi Mark,
Thanks for asking the questions.
To answer some of them. I did not have anyone show me how to forge the extra meat in the front of the bow. I had asked several people and they explained their way to me and I kind of had a difficult time undertstanding exactly how they did it. I tried many attempts doing what you describe in trying to forge thickness into that area. I found that there is really so much that I was able to do. I experimented around alot and this is what I came up with. The only thing I would recomend doing differently is using something smaller than 1" squre. It is what I had on hand and was way oversized, but it still worked out ok.
I do forge weld the grip rail spur. I just make the loop and forge it back onto its self. I have a gas forge that I mostly work with here in the city and then I have a coal forge that was built by my father in-law. I usually use the coal forge out in the country for welding the grip rails and then finish them later in the city. Seems to work pretty well so far.
As far as attaching the guard to the grip rail. I have been brazing them on with copper or brass. I have not tried the forge welding, since I can not forge weld with my gas forge. I do plan on doing some experimenting with forge welding the pieces together. I plan on making a guard that pretty much will need to be forge welded. When I make it, I will be sure to take plenty of pictures.
Another interesting point, I have seen some that were brazed, but what I have found, is each maker seemed to do their own thing. There really seemed to be quite a variety. I have noticed that a lot of guards are all mostly 1 piece. meaning the bow flows right into the grip rail in what appears to be all 1 piece then an extra piece of iron is brazed onto the back of the bow to finish it. I have seen quite a few done that way. I wonder why? seems difficult to do. The georgia rifle that is really nice with the patch box by richard allen may have been made this way. the small piece that finishes off the bow was broken off though.
Finally the last thing I wanted to mention if anyone gets up to the log cabin shop musuem there is a guard that is 4 or 5 seperate pieces all rivited together. It was never finished and all the pieces are in a straight line and flat. They had not been forge welded yet and formed. I don't have a picture of it though. It is really interesting to see how it was done in the middle of the process left unfinished.
Marc