Turning method of thin-wall vane of leaf disc type part
A technology of disk parts and blades, which is applied in the field of thin-walled blade processing technology, can solve problems such as deformation and vibration, and achieve the effects of easy cutting, reduced vibration and deformation, and improved processing accuracy
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[0024] The present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 1-2 As shown, a method for turning thin-walled blades of a semi-open three-dimensional flow impeller structure includes the following steps:
[0025] A. Fill each flow channel of the impeller, that is, the gap between the two blades 1, with polyurethane foaming agent 2;
[0026] B. After the polyurethane foaming agent 2 is solidified, position and clamp the impeller with a special fixture, and after alignment on the lathe, turn the outer edge profile of the blade 1;
[0027] C. After the turning process is completed, the polyurethane foaming agent 2 can be removed by cutting or sanding.
[0028] The performance of polyurethane whipping agent 2 of the present invention meets the following requirements:
[0029] Density not less than 10kg / m 3 ;
[0030] Tensile bond strength not less than 80kPa;
[0031] The shear strength is not less than 80kPa;
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