Gilbert: The press is my "precision"..... and the air hammer is my "speed". Since the pattern is already built inside the "can"....the idea is to take it down as evenly as possible..... if I used the press pressed to draw it, the "divots" would really mess up the pattern, where as the hammer with those mild drawing dies deforms less. When I'm filling/building the pattern inside the can, I try to anticipate the drawing process, and do what I call "pre-compensate" for it.
Yes, vermiculite is the annealing step..... I just need the material soft enough to saw cut. With these types of steel/patterns, once the loaf is turned into slices, those slices will be forged again into blades, or in some cases, particular appropriate slices will be used for folder scales and/or blades. They will receive all the same thermal cycles as an other forged blade that I make.... and sometimes a couple more.