Laser powder filling welding method for SiCp/Al-based composite material
A composite material and welding method technology, which is applied to laser welding equipment, welding equipment, and drying solid materials without heating, etc., can solve the problems of uneven particle distribution, reduce weld quality, and enhance phase aggregation, etc., to achieve simple operation, Ease of industrialization and the effect of improving the absorption rate
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Embodiment 1
[0029] In this embodiment, the SiCp / Al-based composite material laser powder filling welding method, the specific steps are as follows:
[0030] (1) Make a 90° bevel on the welding part of the 12vol.% SiC / 6061Al composite material (in the composite material, the volume percentage of SiC is 12%, and the rest is 6061 aluminum alloy), remove the scale, sandblast and roughen it, and clean it , Dry for later use.
[0031] (2) Sieving the alloy powders Ti and Si, and the particle size of the powder is 140-300 mesh. The atomic percentages of Ti and Si in the alloy powder are: 63.16% Ti, 36.84% Si, and the purity of each component is greater than or equal to 99.9wt.%. Alloy powders were configured according to the above proportions, and then ball milled in a planetary ball mill for 2 hours at a milling speed of 200 rpm, and then dried in a vacuum oven at 60°C for 2 hours.
[0032] (3) After installing the pre-treated base metal, perform laser welding, and use the coaxial powder feed...
Embodiment 2
[0035] In this embodiment, the SiCp / Al-based composite material laser powder filling welding method, the specific steps are as follows:
[0036] (1) Make a 90° bevel on the welded part of the 12vol.% SiC / 6061Al composite material, remove scale, sandblast and roughen it, clean and dry it for later use.
[0037](2) Sieving the alloy powders Ti and Si, and the particle size of the powder is 140-300 mesh. The atomic percentages of Ti and Si in the alloy powder are: 77.42% Ti, 22.58% Si, and the purity of each component is greater than or equal to 99.9wt.%. Configure the alloy powder according to the above ratio, and then ball mill it in a planetary ball mill for 2 hours at a milling speed of 200 rpm, and then dry it in a vacuum oven at 60°C for 2 hours;
[0038] (3) After installing the pre-treated base metal, perform laser welding, and use the coaxial powder feeding device to blow the alloy powder obtained in step (2) to the groove of the SiCp / Al composite material surface for l...
Embodiment 3
[0041] In this embodiment, the SiCp / Al-based composite material laser powder filling welding method, the specific steps are as follows:
[0042] (1) Make a 90° bevel on the welded part of the 12vol.% SiC / 6061Al composite material, remove scale, sandblast and roughen it, clean and dry it for later use.
[0043] (2) Sieving the alloy powders Ti and Si, and the particle size of the powder is 140-300 mesh. The atomic percentages of Ti and Si in the alloy powder are: 83.72% Ti, 16.28% Si, and the purity of each component is greater than or equal to 99.9wt.%. Configure the alloy powder according to the above ratio, and then ball mill it in a planetary ball mill for 2 hours at a milling speed of 200 rpm, and then dry it in a vacuum oven at 60°C for 2 hours;
[0044] (3) After installing the pre-treated base metal, perform laser welding, and use the coaxial powder feeding device to blow the alloy powder obtained in step (2) to the groove of the SiCp / Al composite material surface for ...
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