The main surface of all types of precision metal shaft parts is the cylindrical surface of each journal. The precision of the inner hole of the hollow shaft is generally not high, and the accuracy requirements of minor surfaces such as threads, splines and keyways on the precision metal shaft are also relatively high. Therefore, the processing route of the shaft parts mainly considers the processing sequence of the outer circle, and the processing of the secondary surface is reasonably interspersed with them. Here we introduce each of the different precision and materials used in production. Precision metal shaft parts processing route
Precise parts of various types of precision shaft processing route
(1) Precise metal shaft parts processing technology for general carburizing steel: stock preparation - forging - normalizing - top hole - roughing - semi-finishing, finishing car - carburizing (or carbonitriding) - quenching, low temperature Tempering - coarse grinding - secondary surface machining - fine grinding.
(2) Precise metal shaft machining process route of general precision quenched and tempered steel: stock preparation - forging - normalizing (annealing) - top hole - roughing car - quenching - semi-finish car, finishing car - surface quenching, tempering - rough Grinding - secondary surface machining - fine grinding.
(3) Process routes for precision nitriding steel shaft parts: stock preparation - forging - normalizing (annealing) - top hole - roughing - enamel - semi-finishing, finishing - low temperature aging - rough grinding - nitriding Treatment - Secondary Surface Finishing - Finishing - Light Polishing.
(4) Process route of the overall quenching precision metal shaft parts: stock preparation - forging - normalizing (annealing) - top hole - roughing - quenching - semi-finishing, finishing - minor surface finishing - overall quenching - rough Mill - low temperature aging - fine grinding.
General precision metal shaft parts, the final process using fine grinding is sufficient to ensure the quality of processing. Precision shaft parts, in addition to finishing, should also arrange finishing. For shaft parts other than whole quenching, the finish turning process may be performed prior to the quench heat treatment, or after the quench heat treatment, prior to secondary surface machining, depending on the specific circumstances.
It should be noted that after the quenched part, the main surface of the shaft can not be used. The main surface of the shaft part is the cylindrical surface of each journal. The accuracy of the inner hole of the hollow shaft is generally not high, while the thread and spline on the precision spindle are not required. The accuracy requirements of secondary surfaces such as keyways are also high. Therefore, the processing route of the shaft part mainly considers the processing sequence of the outer circle, and the processing of the secondary surface is reasonably interposed.