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What are the reasons for the deformation of parts in machining?

  • 2022-04-09 17:54:12
The deformation of parts in machining is difficult to avoid. The main reasons are as follows:
The material and structure of the part will affect the deformation of the part. The amount of deformation is proportional to the complexity of the shape, the aspect ratio and the wall thickness, and is proportional to the rigidity and stability of the material. Therefore, the influence of these factors on the deformation of the part should be minimized when designing the part.
The deformation caused by the clamping of the parts. When the parts are clamped, the incorrect clamping point is selected, which is easy to cause clamping deformation.
The deformation caused by the machining of the parts, the elastic deformation of the parts in the direction of the force due to the cutting force during the cutting process, is what we often call the knife yielding phenomenon. The heat generated by the friction between the tool and the part during processing will also deform the part, so high-speed cutting is often selected. The deformation of thin-walled parts during turning is multi-faceted, the clamping force when clamping the parts, the cutting force when cutting the parts, the elastic deformation and plastic deformation generated when the parts hinder the cutting of the tool, and the temperature in the cutting zone increases to produce thermal deformation.

The stress is deformed after processing. After processing, the part itself has internal stress. The internal stress distribution is a relatively balanced state. The shape of the part is relatively stable, but the internal stress changes after removing some materials and heat treatment. At this time, the part needs to reach the force again. balance, so the shape has changed.



Far East Excellence Technology has rich experience in CNC precision machining services, and can efficiently avoid deformation of parts in the process of parts processing. In the next article, we will share how to avoid deformation of parts. Please continue to pay attention to us. If you need more information, please feel free to contact us.

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