Lubricant for stamping die and magnesium alloy stamping molding technology

[0021] Example 1

[0022] A magnesium alloy stamping forming process, the specific steps are as follows:

[0023] (1) First, place a magnesium alloy thin strip (coil) material with a thickness of 0.05 mm and a width of 400 mm in a heat treatment furnace, annealed at 400 ° C for 2 hours, and heat treated before stamping;

[0024] (2) Then, after preheating the stamping die (ie, the punch and the concave die) at 290° C. for 2 hours, apply a stamping die lubricant on the stamping die;

[0025] (3) Take out the magnesium alloy thin strip (coil) material after heat treatment, place it between the preheated punch and the concave die, and stamp the magnesium alloy thin strip with a punching edge force of 6KN and a speed of 3mm / min;

[0026] (4) Finally, the formed magnesium alloy thin strip is aged at 180° C. for 25 hours to obtain a stamped product.

[0027] Wherein, the used lubricant for stamping die is composed of graphene and polytetrafluoroethylene, and the content of graphe

[0044] Example 2

[0045] The magnesium alloy stamping forming process in the present embodiment, its concrete steps are as follows:

[0046] (1) First, place a magnesium alloy thin strip (coil) material with a thickness of 0.10 mm and a width of 200 mm in a heat treatment furnace, annealed at 400 ° C for 2 hours, and heat treated before stamping;

[0047] (2) Then, after preheating the stamping die (ie, the punch and the concave die) at 260° C. for 2 hours, apply a stamping die lubricant on the stamping die;

[0048] (3) Take out the magnesium alloy thin strip (coil) material after heat treatment, place it between the preheated punch and the concave die, and stamp the magnesium alloy thin strip with a punching edge force of 5KN and a speed of 6mm / min;

[0049] (4) Finally, the formed magnesium alloy thin strip is aged at 160° C. for 30 hours to obtain a stamped product.

[0050] Wherein, the used lubricant for stamping die is composed of graphene and polytetrafluoroethylen