I have the same forge... well mine is the whisper momma it has ports in the front and back for bar stock.
Anyways welding isn't a problem at 2300 degrees you just have to work fast, hammer gently(more of a pulling smoothing motion), keep the work only out of the forge for seconds at a time, and do not hit it once it starts to cool(20 seconds-ish)or you break your weld.
Clean metal and flux are necessary, preheating your anvil with hot metal till it is hot to the touch really makes it work a lot easier also.