Wayne Coe
Forum Owner - Moderator
In this thread I said: "
You can keep in mind that round stock has 20% less volume than square. So if you square 1" of 1 1/4 round you should get 1" square 1" long. Then if you draw that out to 3/4" square it should be 1 1/4" long. Of course you are not going to start forging with such small pieces and don't forget that you will loose some to scaling. In mild steel we allow another 20% but that can be much more or much less, depending on your technique. So lets see, 1" of 1 1/4 makes about 1 1/4" of 3/4" square and you need 2 1/2" so if you start off with about a foot to have something manageable and that you can hold onto in the press you could forge the first 2", check it out, and if needs be, forge a little more.
Have fun and let us know how it works out. "
There are two mistakes here,,,and no one called me on it.
1. Round stock actually has 18 and a fraction percent less volume than Square. I use the 20% figure because it is easier to figure in my head.
2. The allowance for stock loss for scaling is 2% not 20%. I don't consider that in my calculations because I already have some fudge factor built in by using the 20% figure rather than 18+% figure.
I hope that this clears up my mi..mis..mistake. Durn it is hard to say that.
Have fun and let us know how it works out. "
There are two mistakes here,,,and no one called me on it.
1. Round stock actually has 18 and a fraction percent less volume than Square. I use the 20% figure because it is easier to figure in my head.
2. The allowance for stock loss for scaling is 2% not 20%. I don't consider that in my calculations because I already have some fudge factor built in by using the 20% figure rather than 18+% figure.
I hope that this clears up my mi..mis..mistake. Durn it is hard to say that.