Mold pressing orthopedic method for die casting piece of magnesium alloy ultra-thin notebook computer case
A notebook computer and magnesium alloy technology, applied in the field of alloy orthopedics, can solve the problems of long heat treatment time, low orthopedic efficiency, and high energy consumption, and achieve the effects of shortening working hours, improving production efficiency and quality, and reducing energy consumption
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Embodiment 1
[0053] The molded orthopedic molding of AZ91D magnesium alloy thin notebook computer shell die-casting parts (wall thickness 1.5mm), the steps are as follows:
[0054] (1) Design orthopedic mold
[0055] (1-1) For the shape drawing of magnesium alloy ultra-thin laptop casing die-casting parts to be corrected, see figure 2 As shown, the data including size and shape of the magnesium alloy ultra-thin laptop casing die-casting to be corrected are collected and imported into MATLAB (Matrix Laboratory) for fitting and drawing a three-dimensional flatness map. The drawn three-dimensional map of flatness see image 3 As shown, among them, the black area is the unqualified area of flatness.
[0056] (1-2) Use Unigraphics NX (CAD CAM CAE, interactive CAD / CAM (computer-aided design and computer-aided manufacturing) system) to model the magnesium alloy ultra-thin laptop casing die-casting to be orthopedic, and the overall thickness is based on the to-be-orthopedic The thickness set...
Embodiment 2
[0068] The molded orthopedic molding of AZ91D magnesium alloy ultra-thin notebook computer casing die-casting parts (wall thickness 0.5mm), the steps are as follows:
[0069] (1) Design orthopedic mold
[0070] It is the same as that of Embodiment 1, except that the side distance of the groove embedded in the small part is 1.0 mm larger than the size of the small part.
[0071] (2) Molding preheating
[0072] After the magnesium alloy ultra-thin laptop casing die-casting to be corrected is kept in a constant temperature furnace at 220°C for 10 minutes, it is quickly transferred to the lower mold of a press preheated to 280°C;
[0073] (3) Molded orthopedic
[0074] Control the upper mold of the press to load and hold the magnesium alloy ultra-thin notebook computer shell die-casting to be orthopedic for 50 seconds. The loading pressure is 24.6MPa. The magnesium alloy ultra-thin notebook computer shell die-casting is placed in the air for cooling.
[0075] Collect the data ...
Embodiment 3
[0079] The molded orthopedic molding of AM60B magnesium alloy ultra-thin notebook computer shell die-casting (wall thickness 1.0mm) is as follows:
[0080] (1) Design orthopedic mold
[0081] Same as Example 1.
[0082] (2) Molding preheating
[0083] After the magnesium alloy ultra-thin notebook computer shell die-casting to be corrected is kept in a constant temperature furnace at 210°C for 10 minutes, it is quickly transferred to the lower mold of a press that is preheated to 275°C;
[0084] (3) Molded orthopedic
[0085] Control the upper mold of the press machine to load and hold the magnesium alloy ultra-thin notebook computer shell die-casting to be orthopedic for 45 seconds, the loading pressure is 22.1MPa, and the mold temperature is always kept at 275°C during the pressure holding process, release the pressure, and take out the The magnesium alloy ultra-thin notebook computer shell die-casting is placed in the air for cooling.
[0086] Collect the data including ...
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