Method and device for manufacturing polyamide three-dimensional object by laser
A three-dimensional object, polyamide technology, applied in additive manufacturing, processing and manufacturing, manufacturing tools, etc., can solve problems such as difficult to achieve results, and achieve the effect of fine three-dimensional feature structure
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Embodiment 1
[0038] Embodiment 1: A polyamide three-dimensional part is manufactured by using a Nd:YAG laser with a wavelength of 1064 nm.
[0039] The material used is the polyamide powder material FS3200 of Hunan Farsoon High-Tech Co., Ltd., and it is fully mixed with aluminum powder with a particle size distribution of 5-40 μm. The volume percentage of FS3200 is 90%, and the aluminum powder is 10%. The device used is the selective laser sintering equipment FS403 of Hunan Farsoon High-Tech Co., Ltd. and correspondingly modified. The matching equipment is equipped with a Nd:YAG laser with a wavelength of 1064nm.
[0040] During the manufacturing process, the layer thickness of the powder coating material is set to 0.1mm, the preheating temperature of the material is about 180°C, the laser power is about 40-80W, the laser spot is controlled at 40-60μm, and the speed is controlled at about 10m / s The laser irradiates the cross-sectional area of the three-dimensional part. When one layer i...
Embodiment 2
[0041] Embodiment 2: Manufacturing carbon fiber-polyamide three-dimensional parts by using a solid-state laser with a wavelength of 532nm.
[0042] The material used is the polyamide powder material FS3400CF of Hunan Farsoon High-Tech Co., Ltd., which contains polyamide powder with a volume fraction of 80% and carbon fiber powder with a volume fraction of 20%, and the carbon fiber diameter is 50-100 microns. The device used is the selective laser sintering equipment FS403 of Hunan Farsoon High-Tech Co., Ltd. and correspondingly modified. The matching equipment is equipped with a solid-state laser with a wavelength of 532 nm.
[0043] During the manufacturing process, the layer thickness of the powder coating material is set to 0.1mm, the preheating temperature of the material is about 180°C, the laser power is about 40-80W, the laser spot is controlled at 40-60μm, and the speed is controlled at about 12m / s The laser irradiates the cross-sectional area of the three-dimensiona...
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