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Carburizing treatment of gear shaft considering preheating

In production, the preheating temperature and time parameters of gear shaft are more based on the experience of workers. Based on practical experience, several groups of preheating process parameters of gear shaft are determined, as shown in the table. The radial distortion of each process is shown in Figure...

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The gear shaft is carburized without preheating

If the distortion of gear shaft is too large, the machining accuracy and assembly accuracy will be reduced and the manufacturing cost will be increased. The radial distortion from the gear shaft axis to the gear teeth will reduce its bearing capacity, the wear resistance of gear meshing will...

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Calculation model of heat treatment of gear shaft

1. Finite element model According to the geometric diagram in Figure 1, the three-dimensional software is used for modeling, as shown in Figure 2 (a). Considering the longitudinal symmetry characteristics of the gear shaft, 1 / 14 of the gear shaft is taken for modeling, and the automatic meshing...

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Carburizing field model of gear shaft

Carburizing process is an unsteady process, which conforms to Fick’s second law: Where: t is the carburizing time, s; C is carbon content, kg / m3; Xi is the distance of carbon atoms in the diffusion direction, m; D is the diffusion coefficient, m2 / s, which is generally...

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