Machining process of automobile transmission gears

• Main Author: Ping Xueli
• Format: Patent
• Language: Chinese; English
• Published: 17.08.2016
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMBINED OPERATIONS; DIFFUSION TREATMENT OF METALLIC MATERIAL; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MACHINE TOOLS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; OTHER WORKING OF METAL; PERFORMING OPERATIONS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a machining process of automobile transmission gears and relates to the field of machining of automobile parts. The machining process comprises the following steps: (1) rolling gears; (2) carburizing; (3) tempering; (4) shaving the gears; and (5) grinding the gears. According to the machining process of the automobile transmission gears, an automatic numeric control high-speed dry-cutting gear rolling machine is used for machining the gears; the machining efficiency is improved; the inner structures of the gears are not damaged; in use, the gears are firstly subjected to isothermal annealing, so that the deformation of the gears in the subsequent carburization treatment is small; due to a process of re-carburizing the gears, the uniformity of the inner structures of the gears can be ensured; the toughness of cores of the gears can be ensured; the hardness and the abrasion resistance of the surfaces of the gears can be improved; the service lives of the transmission gears can be prolong