Large plain bearing

TS NO.:TS-070

oem

5035.52,57                                                               

51726-SAA-003         

48619-0D011                                                                  

41741-58J00                                                   

41741-62J00 

Applicable vehicle Name:

BYD - BYD F0 2008.09-

Changan Suzuki swiftlet

Great Wall - c20r, Ling Ao, C30, gorgeous, cool bear

Jianghuai - Heyue

Chery-e3, a16

Brilliance gold cup 750

Weichai yingzhi-g3

Zhonghua-h230, V3

Lifan - 320

Roewe - 360

FAW - Weizi

Inner diameter: 13.5 outer diameter: 45 height: 20

After the parts are deeply processed, the welding stress must be removed, the annealing process should be selected. The experiments are carried out at two different annealing temperatures. The annealing temperature at 770 ℃ is higher than the quenching temperature (600 ℃) of heat treatment of steel castings, while the AC value of 12cr13 steel is 730 ℃, the quenching temperature at 770 ℃ is in the two-phase region, which is unfavorable for high-frequency quenching.

According to the technological performance of quenching at 600 ℃, the bubble is small the amount is small. Yuedong rear shock absorber bearing has a certain practical effect on reducing the foaming of high frequency quenching. According to the measured in-situ stress, there is no great difference between quenching at 770 ℃ quenching at 600 ℃. Therefore, the process performance of high frequency quenching layer can be considered when quenching at 600 ℃ for 1 h after welding.

The plane bearing has a unique structure. The wall thickness of 20 mm hole inner hole is only 0.75 mm, the wall thickness difference of parts is large, there is no soft belt on both sides. Because the raw material of shock absorber bearing is high carbon steel CR 45 steel GCr15, good cutting performance high strength after heat treatment, after machining only carry out cutting production processing, machining surplus can be left too much, otherwise it will increase the cutting time of post cutting process flow, greatly reduce productivity increase product cost. Therefore, in order to consider the production processing regulations, it is necessary to control the deformation cracking in the whole process of quenching heat treatment.

There are 4 cracks in the inner surface of the bearing. ② Make sure there are no soft bands on both sides of the surface. ③ Ensure that the deformation of both sides of the part is within the allowable range of machining residual amount (flatness ≤ 0.25mm). ④ Calibration of parts after deformation.