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方向柱上轴承下盘是由15CrMo材料制成,工艺流程为:棒材→入厂复检→机加工(包括车、磨、钳等工序)→热处理(渗碳淬火低温回火)→精磨→表面处理→终检。方向柱上轴承下盘在装配过程中有时会发生断裂现象,因为属安全性能件,对整车转向性能影响极大,故笔者进行了多方分析和试验工作,以找出上轴承下盘断裂的原因及解决的方法。
Directional column bearing under the disk is made of 15CrMo material, the process is: bar → rework → machining (including cars, grinding, pliers and other processes) → heat treatment (carburizing quenching low temperature tempering) → grinding → surface treatment → final inspection. Directional column bearing under the disk in the assembly process sometimes fracture occurs, because it is a safety performance, a great impact on the steering performance of the vehicle, so I conducted a multi-party analysis and testing to identify the lower bearing plate fracture Reasons and solutions.