A method for forming a square plate shell blank and its supporting forming die
A square plate shell and forming die technology, applied in metal extrusion die and other directions, can solve the problems of waste material processing, reduce mechanical properties, difficulties, etc., to reduce material consumption, improve formability, and increase work hardening strength. Effect
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[0026] The square shell blank forming method includes the following steps: 1 high-speed band saw blanking and deburring; 2 blank annealing and softening treatment: electric heating furnace, 400-430 ℃ heat preservation for 1-2 hours, cooling with the furnace; 3 blank surface treatment : Coated with lubricating oil or zinc stearate powder; 4. The outer square plate and shallow inner hole are formed by the first-order occlusion extrusion; 5. The second-order reverse extrusion is formed into a square inner hole; 7 Extrusion rough solution aging treatment, subsequent numerical control processing. Specific steps are as follows:
[0027] Step 1. Select an aluminum alloy bar material with a slightly smaller outer diameter according to the target size of the square shell blank, and after cutting the material with a high-speed band saw, manually remove the end surface burrs of the sawed material to obtain a sawed blank;
[0028] Step 2. Soften the sawn blank in step 1, that is, place t...
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