3D printing process method of high-strength aluminum manganese alloy
An aluminum-manganese alloy and 3D printing technology, applied in the field of 3D printing, can solve the problems of high price, unfavorable large-scale promotion and application, and low content of rare earth elements, etc., and achieve the effects of hindering grain growth, improving SLM performance, and improving performance
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Embodiment 1
[0046] The aluminum-manganese alloy powder was obtained by gas atomization, and its chemical composition: the content of Mn was 5.12%wt, the content of Mg was 1.21%wt, the content of Si was 0.79%wt, the content of Zr was 1.08%wt, the content of Fe was 0.10%wt, and the rest for Al. The average particle size of the powder is 35.18 μm, more than 90% of the powder particles are spherical or quasi-spherical, and the powder fluidity is good. First dry the powder in a vacuum oven at 70°C for 12 hours, then put the powder into the chamber of a Hanbang HBD-SLM100 printer (the diameter of the laser beam spot used is about 50 μm), and pass high-purity argon gas to make the chamber The oxygen content in the chamber is less than 0.1%, and then laser scanning is performed twice to preheat the substrate, and then the powder is printed according to the 3D model of the part. The printing parameters were set as laser power 200W, scanning rate 400mm / s, printing layer thickness 30μm, scanning sp...
Embodiment 2
[0048] This embodiment provides a 3D printing process for high-strength aluminum-manganese alloys, including the following steps:
[0049] High-strength aluminum-manganese alloy raw materials (Mn content is 1.00%wt, Mg content is 3.00%wt, Si content is 0.01%wt, Zr content is 3.50%wt, Fe content is 0.01%wt, and the rest is Al) by heating and melting It is well mixed;
[0050] High-quality aluminum-manganese alloy powder is obtained by gas atomization technology for high-strength aluminum-manganese alloy in the molten state. After 5 hours of vacuum drying, aluminum-manganese alloy powder for 3D printing is obtained. The aluminum-manganese alloy powder for 3D printing The particle size is between 10-60μm, more than 90% of the powder particles are spherical or quasi-spherical, the powder particle size is uniform, the fluidity is good, it will not be oxidized during the preparation process, and the powder quality is excellent;
[0051] Adjust the printing parameters, and carry out...
Embodiment 3
[0054] This embodiment provides a 3D printing process for high-strength aluminum-manganese alloys, including the following steps:
[0055] High-strength aluminum-manganese alloy raw materials (Mn content is 10.00%wt, Mg content is 0.01%wt, Si content is 2.00%wt, Zr content is 0.01%wt, Fe content is 1.50%wt, the rest is Al) through heating and melting It is well mixed;
[0056] High-quality aluminum-manganese alloy powder is obtained by gas atomization technology for high-strength aluminum-manganese alloy in the molten state. After 24 hours of vacuum drying, aluminum-manganese alloy powder for 3D printing is obtained. The aluminum-manganese alloy powder for 3D printing The particle size is between 10-60μm, more than 90% of the powder particles are spherical or quasi-spherical, the powder particle size is uniform, the fluidity is good, it will not be oxidized during the preparation process, and the powder quality is excellent;
[0057] Adjust the printing parameters, and carry ...
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