Ah...they mystery of forge welding. How much time do you have? It is really very simple, get the metal hot enough, put some flux on it and stick it together. It depends on the material as to how hot, but I can tell you it's hot enough when I see it. The two pieces will actually "stick" together, forge welding does not require hard heavy blows if the material is at the suffecient temp and properly fluxed. Hammer blows just seat the two pieces to each other, and drive out the flux (and crud) between the two surfaces to make a clean, solid weld. PC pliers look a lot like smaller versions of tongs. No slip joints, just a flat gripping surface on each half.