The process characteristics and application range of the pupil
Compared with the outer circle of the car, the boring bar system has poor rigidity and large deformation, the heat dissipation and chip removal conditions are not good, the thermal deformation of the workpiece and the tool is relatively large, and the machining quality and production efficiency of the boring hole are not as high as the outer circle. .
From the above analysis, the pupil has a wide processing range and can process holes of various sizes and different precision grades. For holes and holes with large apertures, high dimensional and positional accuracy, the pupil is almost the only processing. method. The machining accuracy of the boring is IT9 to IT7, and the surface roughness Ra is . The boring can be carried out on machine tools such as boring machines, lathes, milling machines, etc. It has the advantages of maneuverability and flexibility, and is widely used in production. In large-scale mass production, in order to improve the efficiency of the pupil, a mold is often used.
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