What are the key steps in the heat treatment process of 6061 aluminum alloy forgings?
The key steps in the heat treatment process of 6061 aluminum alloy forgings include: Preheating: Forgings need to be preheated before heating to prevent cracks during heating. The preheating temperature is generally 100 ~ 200℃, and the holding time is 1 ~ 2 hours. Heating: the forging is heated in the heating furnace, the heating temperature is 530 ~ 570℃, and the holding time is 2 ~ 4 hours. In the heating process, it should be avoided to heat too fast to prevent cracks in the forging. Heat preservation: Keep the forgings at the heat preservation temperature for a certain time so that the temperature inside and outside the forgings is evenly distributed. The holding temperature is 550 ~ 570℃,…
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