Magnesium alloy composite forming method
A composite forming and magnesium alloy technology is applied in the field of manufacturing magnesium alloy structural parts by casting preformed blanks and short-flow die forging, which can solve the problems of coarse grains, high production costs, and increase of process steps, and achieves improvement of internal defects. , The effect of reducing production costs and shortening the process flow
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Embodiment 1
[0017] Embodiment 1: A magnesium alloy automobile engine bracket is produced by adopting a magnesium alloy composite forming method and using AM60 as a raw material. The process is:
[0018] 1) Magnesium alloy material selection: Magnesium alloy AM60 is selected as the raw material:
[0019] 2) Cast billet: cast a billet close to the shape of the engine bracket by gravity casting;
[0020] 3) Uniform heating of the billet: heat the billet and the mold to 300°C at the same time, and hold the uniform temperature for 30 minutes;
[0021] 4) Die forging forming: Die forging is performed on a domestic 300MN die forging hydraulic press at a speed of 900mm / min, and the magnesium alloy die forging product of the engine bracket is obtained at one time.
Embodiment 2
[0022] Embodiment 2: The same magnesium alloy automobile engine bracket as in Embodiment 1 was produced by using the composite forming method of magnesium alloy and using AM70 as the raw material. The process is:
[0023] 1) Magnesium alloy material selection: Magnesium alloy AM70 is selected as the raw material;
[0024] 2) Cast billet: cast a billet close to the shape of the engine bracket by gravity casting;
[0025] 3) Uniform temperature heating of the billet: heat the billet and the mold to 350°C at the same time for 25 minutes;
[0026] 4) Die forging forming: Die forging is performed on a domestic 300MN die forging hydraulic press at a speed of 600mm / min, and the magnesium alloy die forging product of the engine bracket is obtained at one time.
Embodiment 3
[0027] Embodiment 3: The same magnesium alloy automobile engine bracket as that in Embodiment 1 is produced by adopting the composite forming method of magnesium alloy and using AM80 as the raw material. The process is:
[0028] 1) Magnesium alloy material selection: Magnesium alloy AM80 is selected as the raw material;
[0029] 2) Cast billet: cast a billet close to the shape of the engine bracket by gravity casting;
[0030] 3) Uniform heating of the billet: heat the billet and the mold to 400°C simultaneously for 20 minutes;
[0031] 4) Die forging forming: Die forging is performed on a domestic 300MN die forging hydraulic press at a speed of 300mm / min, and the magnesium alloy die forging product of the engine bracket is obtained at one time.
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Abstract
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Application Information
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