In the process of processing there must be some with is what we should pay attention to. Because in the work, a lack of attention will easily lead to problems, problems will directly affect the quality of the product, so in order to avoid these things happen, then we have to pay attention to the time of production. And so the problem must be timely solution, but before the solution must first find what is the reason in the solution, then we will understand the following mechanical parts processing in the cause of deformation is what?
1, the effect of internal force incurred parts processing accuracy changes
Lathe processing, usually is the application of the effect of centripetal force, with the lathe's three-jaw or perhaps four-jaw chuck, the parts stuck tight, and then the mechanical parts to stop processing. At the same time, in order to ensure that the parts are not loose when the force, reduce the effect of internal radial force, it is necessary to make the clamping force is greater than the mechanical cutting force. Clamping force increases with the increase of cutting force, and then decreases and decreases. Such an operation can make mechanical parts in the process of processing force stability. However, after the three-jaw or perhaps four-jaw chuck release, the machined mechanical parts will be far from the original, some present polygonal, some present oval, present a large bias.
2, heat treatment processing after the simple deformation problem
On the sheet type of mechanical parts, due to its long diameter is very large, in its stop after the thermal treatment is simple to present the straw hat meandering situation. On the one hand, it will present the phenomenon of the middle bulge, the plane deflection increases, on the other hand, due to the influence of various external factors, so that the parts produce meandering phenomenon. These deformation problems are not only due to the heat treatment of the parts after the onset of stress changes, and the operator's professional knowledge is not solid, not quite understand the structural stability of the parts, and then increase the probability of parts deformation.
3, the effect of external forces caused by the elastic deformation
There are several main reasons for the elastic deformation of parts in machining. First, the internal structure of some parts, assuming that they contain a thin sheet, will have higher requirements for the operation method, otherwise the operator in the parts to stop positioning and clamping, can not stop corresponding with the planning between the drawings, simple incurring elastic deformation. Second, the lathe and fixture is not flat, so that the parts in stopping the fixed both sides of the force is not even, resulting in cutting the force effect of the small side of the force will be presented under the effect of translation present parts deformation. Third, the positioning of the parts in the processing process is not reasonable, so that the rigid strength of the parts is reduced. Fourth, the presence of cutting force is also one of the causes of the elastic deformation of the parts. These different causes of the elastic deformation, all clarify the effect of external forces on the quality of machining of mechanical parts.
These points are the causes of deformation in the machining of mechanical parts, mechanical processing function is not only related to the interests of enterprises, but also related to the safety, in order to bring economic benefits to enterprises at the same time, but also can help reduce the probability of safety accidents. So safety is very important
