Wharbo Precision Manufacturing Co.,Ltd

It generally includes dimensional accuracy, shape accuracy and positional accuracy.

   A. dimensional accuracy: degree of dimensional accuracy is in line with the actual size and the size of the part surface over parts after machining or surface itself between. Part ideal size refers to the part drawing dimensioned intermediate values.

   B. shape accuracy: Accuracy is the degree of the actual shape of the shape of the ideal shape of the part surface parts of the surface itself after processing consistent, national standards set forth by straightness, flatness, roundness, cylindrical, of profile and surface profile as a measure of the degree of shape accuracy of the project. Ideal surface shape is defined absolute surface shape.

   C. Location accuracy: position accuracy is the degree of inter-machined surface of the part of each actual position and the ideal position in line with the part surface, the national standards set forth by parallelism, squareness, concentricity, symmetry, position accuracy, runout and Full beating as a measure of position accuracy projects. Ideal parts each position between the surface means absolutely accurate location between the surfaces.

Part dimensional accuracy obtained with the process of adjustment, measurement, but also with manufacturing and tool wear and other factors related. Mainly depends on the shape of the part relative to the forming tool and the workpiece motion to obtain, so the shape of accuracy depends on the movement precision molding machine, sometimes depending on the shape precision of the cutting edge. The positional accuracy is effected by precision machine tools and workpiece clamping method and other factors.