There must be some things we should pay attention to during the 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, then we must pay attention to it when producing. When there is a problem, 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 causes changes in the machining accuracy of parts

During 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 ability to operate makes the mechanical parts stable during 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

Regarding sheet-like mechanical parts, since their long diameters are very large, the straw hat simply turns around after the heat treatment is stopped. On the one hand, it will show the 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 caused by changes in the internal stress of the parts after heat treatment, but also because of the lack of professional knowledge of the operators and poor understanding of the structural stability of the parts, which increases the probability of part deformation.

3. Elastic deformation caused by external force

There are several main reasons for the elastic deformation of parts in machining. One is that if the internal structure of some parts contains thin slices, there will be higher requirements for the operation method. Otherwise, when the operator stops positioning and clamping the parts, they cannot stop the correspondence with the plan of the drawing, and 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 fixed, resulting in the smaller force effect during cutting, which will show translational deformation under the effect of force. The third is the unreasonable positioning of the parts during processing, 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 probability of safety accidents. So safety is very important. We will stop here today. If you want to learn more, please visit the website to learn more.