What factors cause workpiece deformation in machining?

All kinds of processing components is now a particularly hot areas, because in the modern society is based on basic industrial equipment as the leading development trend, and this kind of mechanical parts processing is used for making equipment, can be can not missing, but in the processing link, is how much will happen some problem, so have what way can lead to distortion? Let's have a look below:

Workpiece clamping deformation: mechanical parts processing workpiece clamping, to choose the accurate clamping point, and then in accordance with the selection of the appropriate clamping force. Therefore, to make the clamping point and the fulcrum consistent, so that the clamping force on the prop, the clamping point should be as close to the processing surface as possible, and then select the bearing force is not easy to cause clamping deformation parts. When the workpiece on several positions of the clamping force effect, we must take into account the order of clamping force, in order to let the workpiece and support point contact clamping force should be the first effect, and is not easy to be very large, but for the balance of the cutting speed of the key clamping force, should be behind the effect. Mechanical parts processing to increase the workpiece and fixture contact range and the application of radial clamping force. Mechanical parts processing to enhance the stiffness of parts, is a better way to deal with the clamping deformation, but because of the shape and structural characteristics of thick wall parts, it has a relatively low stiffness. So under the action of clamping force, it will cause deformation.

The material and structure of the workpiece will harm the deformation of the workpiece: the deformation size is positively correlated with the shape complexity, width to height ratio and wall thickness size, and positively correlated with the stiffness and reliability of the material. Thus in the design of the scheme of parts to minimize the harm of this element to workpiece deformation.