Introduction to machining accuracy of CNC precision parts

In the machining process of precision mechanical parts, the following points are introduced to control the machining accuracy: geometric accuracy refers to the accuracy of geometric shapes such as surfaces or axes of parts, such as whether the line is straight, whether the surface is flat, whether the normal sections on the cylinder are round, etc. The allowable variation range is represented by "geometric tolerance". The smaller the geometric tolerance number, the higher the shape accuracy; Dimensional accuracy: dimensional accuracy refers to the accuracy of the dimension of the part after machining, expressed in "dimensional tolerance". When the dimensions of parts are the same, the higher the accuracy, the smaller the tolerance number; Positional accuracy: positional accuracy refers to the accuracy of the mutual position between the surfaces of the parts, such as whether the two planes are parallel, vertical, coaxial, etc., expressed in "positional tolerance". Holding these points, the machining accuracy of precision mechanical parts is easier to control.

The above is a brief introduction to the machining accuracy of precision mechanical parts. Thank you for sharing!

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