From the load stroke curve, it can be seen that the load change in the whole deformation process can be roughly divided into three stages: in the first stage, the metal is basically not deformed, the load is very small, and the rise is very slow; In the second...
As shown in the figure, the stress distribution is given when the reduction is 1.5mm, 3.0mm and 4.5mm respectively. At the initial stage of deformation, the maximum stress is mainly concentrated in the half shaft area and small end face, and the stress of the gear tooth is very...
The strain distribution in the deformation process shows that the overall deformation of the half shaft gear is small, and mainly concentrated on the tooth surface, the large end face and the transition fillet of the upper and lower bosses. Figure 1 shows the strain distribution when the reduction...
The velocity field distribution in the deformation process directly shows the metal flow law during the final forging of half shaft gear. As shown in the figure, the velocity field distribution is given when the reduction is 1.5mm, 3.0mm and 4.5mm respectively. At the initial stage of deformation, the...
As shown in the figure, the structure diagram of the final forging die for the half shaft gear is given. Since the final forging temperature is lower than the pre forging temperature, the tooth die is designed in the lower die, so the problem of too high temperature rise...
As shown in the figure, the structure diagram of the pre forging die for the half shaft gear is given. The tooth die of the pre forging die for the half shaft gear is the upper die, the contact time between the tooth die and the high-temperature blank is...
As an important part of transmitting power, gear shaft is widely used in transmission or reducer parts of heavy industrial equipment such as agricultural machinery, transportation and mining machinery. Its service environment is extremely harsh. While transmitting power, it also has to bear high-strength alternating load and impact load....
The reason of gear forging folding is that the metal flow is not smooth during final forging, so reducing the trend of gear forging folding should be realized by improving the metal flow in the final forging process. The reasons why the metal flowing out of the skin meets...
1. Casting technical requirements The structure of gear parts of an oil pump is shown in Fig. 1 and Fig. 2 (shaft and disc). Alloy structural steel 12cr2ni4a is adopted. This material is an excellent carburized steel with good hardenability. After carburizing, quenching and low-temperature tempering, it not only...
Forging process flow of two shaft gear forgings: blanking with band saw（ φ 85mm round steel) → heating in medium frequency induction furnace → upsetting and forming on program-controlled hammer. The insert die is shown in Figure 1. There are three factors that can lead to gear forging folding...