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Factors affecting machining accuracy of precision parts

February 27, 2024

As we all know, the reason why the machining of precision parts is called precision machining is that its machining process and process requirements are very high, and the precision requirements for products are very high. The machining precision of precision parts includes the precision of position, size and shape. The following are the factors that affect the machining precision of precision parts:


(1) The spindle rotation runout of the machine tool can produce a certain error to the machining accuracy of the parts.


(2) The inaccuracy of machine tool guide rail can also lead to the error of workpiece shape in precision parts processing.


(3) Transmission parts can also cause workpiece machining errors, which is also the main factor of workpiece surface errors.


(4) Different types of cutting tools and fixtures will also have different degrees of impact on the accuracy of the workpiece.


(5) In the process of machining and cutting, the change of the position of the force point will lead to the deformation of the system, resulting in differences, and can also cause varying degrees of error in the accuracy of the workpiece.


(6) The different cutting force will also affect the workpiece accuracy.


(7) The error caused by thermal deformation of the process system. During machining, the process system will produce certain thermal deformation under the action of various heat sources.


(7) The deformation caused by the heating of the process system often affects the accuracy of the workpiece.


(8) Deformation of the machine tool due to heating will cause deformation of the workpiece.


(9) Tool deformation due to heating will have a great impact on the workpiece.


(10) The workpiece itself is deformed by heating, which is mainly caused by heating in the cutting process.

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