As we all know, the reason why the machining of precision parts is called precision machining is precisely because 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. We summarize the following ten factors affecting the machining precision of precision parts:
(1) The rotation runout of the spindle 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 processed by precision parts.
(3) Transmission parts can also lead to 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 machining workpieces.
(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 errors in the accuracy of the workpiece.
(6) Different cutting force will also affect the workpiece accuracy.
(7) The deformation caused by the heating of the process system often affects the accuracy of the workpiece. 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.
(8) The deformation of the machine tool due to heating will lead to the deformation of the workpiece.
(9) The thermal deformation of the tool will have a great impact on the workpiece.
(10) The thermal deformation of the workpiece itself is mainly caused by heating in the cutting process.
ken. tang@chengcg.com
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