What is the cause of the deformation in the machining of mechanical parts?

There must be some things we should pay attention to in the process of processing. Because in the work, a carelessness can easily lead to problems, which will directly affect the quality of the product, so in order to avoid these things from happening, we must pay attention to it when we produce. When the problem occurs, it must be solved in time, but before it is solved, we must first find out what is the reason for the solution. Then let's understand the cause of the deformation in the machining of mechanical parts.

1. The internal force effect leads to changes in the machining accuracy of parts
In lathe processing, the effect of centripetal force is usually applied. Use the three-jaw or four-jaw chuck of the lathe to clamp the parts, and then stop processing the mechanical parts. At the same time, in order to ensure that the parts do not loosen when subjected to force and reduce the effect of the internal radial force, it is necessary to make the clamping force greater than the mechanical cutting force. The clamping force increases with the increase of the cutting force, and then decreases with the decrease. This kind of operation ability makes the mechanical parts stable in the process of processing. However, after the three-jaw or four-jaw chuck is released, the machined parts will be very different from the original ones, some are polygonal, and some are elliptical, showing a larger deviation.
2. Simple deformation problems after heat treatment
As for sheet-like mechanical parts, due to their very large long diameter, the straw hat simply turns around after the heat treatment is stopped. On the one hand, there will be a phenomenon of bulging in the middle, and the plane deviation will increase. On the other hand, due to the influence of various external factors, the parts will be circuitous. These deformation problems are not only due to the changes in the internal stress of the parts after heat treatment, but also the lack of professional knowledge of the operators and the lack of understanding of the structural stability of the parts, which increases the probability of deformation of the parts.

3. Elastic deformation caused by external force
There are several main reasons for the elastic deformation of parts in machining. One is that if there are thin slices in the internal structure of some parts, there will be higher requirements for the operation method. Otherwise, when the operator stops positioning and clamping the parts, it will not be able to stop the correspondence with the plan of the drawing, which will simply cause elastic deformation. produce. The second is the unevenness of the lathe and the fixture, which causes the uneven force on both sides of the part when the part is stopped, and the side with the smaller force effect during cutting will appear to be translated and deformed under the effect of the force. The third is the unreasonable positioning of the parts during the machining process, which reduces the rigidity of the parts. Fourth, the existence of cutting force is also one of the reasons for the elastic deformation of parts. The elastic deformation caused by these different reasons all clarify the effect of external force on the processing quality of mechanical parts.

The above points are the reasons for the deformation in the processing of mechanical parts. The function of mechanical processing is not only related to the interests of the enterprise, but also related to safety. While bringing economic benefits to the enterprise, it can also effectively reduce the occurrence of safety accidents. The probability. Therefore, safety is very important. Today we will stop here. If you want to know more information, please visit the precision machining website to learn more.