A kind of laser additive manufacturing la 2 o 3 /(cu,ni) Gradient Functional Composites Approach
A gradient function and laser additive technology, which is applied in the direction of additive manufacturing, additive processing, and energy efficiency improvement, can solve the problems of increasing material preparation cycle and energy consumption, and achieve the effect of short preparation cycle
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Embodiment 1
[0034] A kind of laser additive manufacturing La 2 o 3 / (Cu, Ni) the method for gradient function composite material, its step is as follows:
[0035] S1, the preparation of raw material powder;
[0036] La 2 o 3 The particle size of the powder is 2-10 μm, and the purity is 99.4%; the particle size of the Cu powder is 50-150 μm, and the purity is 99.9%; the particle size of the Ni45 powder is 50-150 μm, and the purity is 99.9%; the ratio of various powders is shown in Table 1.
[0037] Table 1 Various powder ratios and corresponding layer sequences
[0038]
[0039] Prepare 4 kinds of raw material powders according to the proportions in Table 1, mix the powders by ball milling, and put them into a drying oven. Drying temperature: 110°C, time: 90min, remove the moisture in the powders, and prepare 4 kinds of raw material powders.
[0040] S2, pretreatment of Cu substrate;
[0041] The selected Cu substrate size is 150×50×15mm 3 . Use 240# sandpaper to polish the surf...
Embodiment 2
[0053] A kind of laser additive manufacturing La 2 o 3 / (Cu, Ni) the method for gradient function composite material, its step is as follows
[0054] S1, the preparation of raw material powder;
[0055] La 2 o 3 The particle size of the powder is 2-10 μm, and the purity is 99.4%; the particle size of the Cu powder is 50-150 μm, and the purity is 99.9%; the particle size of the Ni45 powder is 50-150 μm, and the purity is 99.9%; the ratio of various powders is shown in Table 2.
[0056] Table 2 Various powder ratios and corresponding layer sequences
[0057]
[0058] Prepare 5 kinds of raw material powders according to the proportions in Table 2, mix them by ball milling, put them into a drying oven, and dry them at 110°C for 90 minutes to remove the moisture in the powders to prepare 5 kinds of raw material powders.
[0059] S2, pretreatment of Cu substrate;
[0060] The selected Cu substrate size is 150×50×15mm 3 . Use 240# sandpaper to polish the surface of the sub...
Embodiment 3
[0070] A kind of laser additive manufacturing La 2 o 3 / (Cu, Ni) the method for gradient function composite material, its step is as follows
[0071] S1, the preparation of raw material powder;
[0072] La 2 o 3 The particle size of the powder is 2-10 μm, and the purity is 99.4%; the particle size of the Cu powder is 50-150 μm, and the purity is 99.9%; the particle size of the Ni45 powder is 50-150 μm, and the purity is 99.9%; the ratio of various powders is shown in Table 3.
[0073] Table 3 The sequence corresponding to various powder ratios
[0074]
[0075]
[0076] Prepare 4 kinds of raw material powders according to the proportions in Table 3, mix them by ball milling, and dry them in a drying oven at 110°C for 90 minutes to remove moisture from the powders; 4 kinds of raw material powders are prepared
[0077] S2, pretreatment of Cu substrate;
[0078] The selected Cu substrate size is 150×50×15mm 3 . Use 240# sandpaper to polish the surface of the substra...
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