Method for directly molding high-entropy alloy turbine engine hot end component through laser metal
A technology for turbine engine and hot-end components, which is applied in the field of laser metal direct forming of high-entropy alloy turbine engine hot-end components, can solve the problems of difficulty in obtaining high-entropy alloys, difficult processing and manufacturing, and achieves reducing manufacturing costs and meeting application requirements. , the effect of improving efficiency
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[0052] Example 1
[0053] Five metals, W, Ti, Zr, V, and Ta, were selected and configured into high-entropy alloy powder according to the atomic ratio, and placed in the synchronous powder feeding equipment of the LMDF rapid prototyping equipment. The 3D CAD model of the hollow turbine blade is established by UG software and sliced and layered, imported into Magics software to add auxiliary support structure, and the obtained stl format file is imported into the industrial computer. According to the vapor pressure of these five different elements, the laser power is selected as 200W. At the same time, due to the tiny air film holes and exhaust edge structure inside the hollow turbine blade, and the high requirements for the surface quality and forming accuracy of the formed parts, it is necessary to use small focal length of the lens (100mm) to obtain a fine focused spot size (30μm). A hybrid scanning path of contour + grating + partition was adopted, the scanning speed was...
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[0054] Example 2
[0055] Five metals, W, Ti, Zr, V, and Ta, were selected and configured into high-entropy alloy powders according to the same atomic ratio, and placed in the synchronous powder feeding equipment of the LMDF rapid prototyping equipment. The 3D CAD model of the turbine disk is established by UG software and sliced and layered, and then imported into Magics software to add auxiliary support structure, and the obtained stl format file is imported into the industrial computer. According to the vapor pressure of these five different elements, the laser power is selected to be 200W. At the same time, due to the fine structure inside the turbine disk, and the high requirements for the surface quality and forming accuracy of the formed parts, a lens with a small focal length (100mm) is required to obtain fine The focused spot size (50 μm). A hybrid scanning path of contour + grating + partition was adopted, the scanning speed was set to 100 mm / s, and the scanning l...
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