Factors affecting the machining accuracy of precision parts
As we all know, the reason why the processing of well-rounded parts is called well-rounded machining is precisely because of the high requirements of its processing procedures and processes, as well as the high requirements for the accuracy of products. The processing accuracy of well-rounded parts includes the accuracy of position, size, form, etc. today’s small compilation summarizes the following factors that affect the processing accuracy of well-rounded parts:
(1) The rotary run out of the machine tool’s spindle can produce certain deviation to the machining accuracy of the parts.
(2) The inaccuracy of the guide rail of machine tool can also cause the deviation of the workpiece form of the careful parts.
(3) Transmission parts can also cause workpiece machining deviation, which is also the most important factor of workpiece surface deviation.
(4) The difference of tool and fixture will also affect the accuracy of workpiece.
（5） In the process of machining and cutting, due to the change of the position of the stress point, the system will deform, which will lead to differences, and also can make the accuracy of the workpiece deviate from the standard.
(6) The difference of cutting force will also affect the accuracy of workpiece.
(7) In the process of machining, the process system will have certain thermal deformation under the action of various heat sources.
(7) The deformation of the process system caused by heating usually affects the accuracy of the workpiece.
(8) The deformation of the machine tool caused by heating will cause the deformation of the workpiece.
(9) The hot deformation of the tool will have a great influence on the workpiece.
(10) The workpiece itself is deformed by heating, mainly if it is deformed by heating in the cutting process
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