Accuracy requirements for machining dimensions of CNC precision parts

Generally, we have high precision requirements for These include technical requirements, personnel requirements, corporate management and operation models, whether they are innovative, and whether they can adapt to fierce competition.processing CNC precision parts .

The machining accuracy of CNC precision parts is measured by tolerance levels. The smaller the grade value, the higher the accuracy; the machining error is expressed by numerical values. The larger the numerical value, the greater the error. High machining accuracy means small machining error, and vice versa; the actual parameters obtained by any machining method will not be absolutely accurate. From the perspective of the function of the part, as long as the machining error is within the tolerance range required by the part drawing, it is considered that processing is guaranteed. Accuracy.

The CNC machining error of precision parts reflects the machining accuracy. The larger the error, the lower the machining accuracy, and the smaller the error, the higher the machining accuracy; the main aspects that affect machining accuracy: dimensional accuracy, the degree to which the actual size of the part after processing conforms to the tolerance belt center of the part size.

Dimensional accuracy is controlled by dimensional tolerances. Dimension tolerance is the amount of change allowed for part size during cutting. When the basic dimensions of mold accessories are the same, the smaller the dimensional tolerance, the higher the dimensional accuracy; shape accuracy: refers to the degree to which the actual geometric shape of the surface of the processed part conforms to the ideal geometric shape. The items that evaluate shape accuracy include 6 items, including straightness, flatness, roundness, cylindricality, and line profile. The shape accuracy is controlled by shape tolerances. Except for the 13 precision levels of roundness and cylindricality, the rest are divided into 12 precision levels. Level 1 is the highest and Level 12 is the lowest.

The above are the dimensional accuracy requirements for the processing of CNC precision parts . For more information, please consult Dongguan Ruibang Technology online.