Pre-forging die of flange and forging die comprising pre-forging die

The utility model discloses a flange pre-forging die, which comprises a pre-forging upper die and a pre-forging lower die, the pre-forging upper die is provided with an upper impact-bearing surface, the upper impact-bearing surface is provided with a pre-forging punch, the pre-forging lower die is provided with a lower impact-bearing surface, the lower impact-bearing surface is provided with a pre-forging cavity, in a die assembly state, the pre-forging punch is matched with the pre-forging cavity, and the pre-forging punch is matched with the pre-forging cavity. And a flash storage recess communicated with the outer side of the pre-forging cavity is arranged between the upper strike bearing surface and the lower strike bearing surface. The utility model further discloses a forging die. According to the pre-forging die of the flange and the forging die comprising the pre-forging die, flashes generated on the periphery of a forging stock semi-finished product during forging and pressing can be conveniently con