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Techniques of machining thin-walled parts on CNC lathe

Posted by: Chris Na 2021-05-26 Comments Off on Techniques of machining thin-walled parts on CNC lathe

In the process of machining and cutting, the CNC lathe undergoes elastic deformation in the direction of the force due to the action of the cutting force, which is what we often call the phenomenon of tool letting. Corresponding measures should be adopted on the tool to deal with this kind of deformation. The tool must be sharp during finishing. On the one hand, it can reduce the resistance caused by the conflict between the tool and the workpiece, and on the other hand, it can improve the heat dissipation ability of the tool when cutting the workpiece.
Then reduce the remaining internal stress on the workpiece. With the rapid development of science and technology, the society has higher and higher requirements for the structure, function, accuracy, power and type of mechanical products, and the proportion of single-piece and medium- and small-volume products is increasing. Traditional general-purpose and special-purpose machine tools and process equipment can no longer meet the requirements of high-quality, high-power, and diversified processing.
In the meantime, CNC lathes have been increasingly used in the machinery manufacturing industry because of their high power, high precision and high flexibility. They have become one of the most widely used cnc machine tools. Thin-wall machining of CNC lathes is difficult, especially for inner holes. The machining, because in the cutting process.
The thin wall is simply deformed due to the cutting force. Then it leads to an ellipse or a “waist shape” with a small center and large ends. Other thin-walled bushings are prone to thermal deformation due to poor heat dissipation during processing, causing errors in standard and shape. The important problem that needs to be dealt with is how to reduce the influence of cutting force on the deformation of the workpiece if the drawing requirements are not met.

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