Die forging process of aluminum alloy forgings
1. Name, model or power of equipment;
2. Name and drawing number of forging die;
3. Name, model or power of inspection;
4. Forging die preheating and cooling control: the forging die can be preheated by gas heating, hot billet baking or electric furnace heating, and the preheating temperature is 150~350 ℃; Methods and media for cooling and lubricating forging dies;
5. Initial forging temperature and initial forging temperature control: when the continuous heating of each furnace exceeds the specified minimum heating time, the heating furnace instrument displays within the specified temperature range of the actual furnace temperature, and forging can be carried out in advance; Number of pre forging hammers; Clean the oxide skin in the mold room at least twice with the air duct, and clean or remove the oxide skin on the upper part of the preform at any time with the air duct;
6. Final forging temperature and final forging temperature control: when the total time from pre forging to final forging is controlled within the specified limit time, the final forging temperature meets the specified requirements;
7. When the total time from pre forging to final forging exceeds the specified limit time range, and the shape and size do not reach the blank forging diagram, it is allowed to reheat to the specified final forging temperature diagram.