From as received, if just stock-removed to get a blade, do all your profiling, drilling and rough grinding etc, then heat up oven to 1490. Normalize once from 1490, then put right back in and heat to 1490 with a 10 minute soak at temp. Quench into parks 50 or AAA or something medium-fast. Temper twice for two hours, try 350 for Rc 62 but if you want to hit a specific Rc hardness my advice is to start low and creep up on it as equipment varies.
