摘要
横向稳定杆是汽车悬架中的一种辅助弹性元件。横向稳定杆起到增加悬架刚度的作用。装有横向稳定杆的车辆行驶较稳定、舒适,且翻车几率大大降低。稳定杆的设计与校核一直是人们研究的重点。现在基本都采用有限元计算方法;稳定杆的设计应力不能太高,还必须用淬火+回火的热处理方式来进行强化处理。热处理是保证稳定杆的使用性能与可靠性的最关键的工艺过程。金相组织是决定稳定杆疲劳寿命的关键因素,稳定杆热处理就是为了获得良好的金相组织。组织粗大及含有游离铁素体等非马氏体组织都会降低稳定杆的疲劳寿命。加强热处理过程控制并采取针对性的监控措施可以防止稳定杆产生不良的金相组织。
The lateral stabilizer bar is a kind of auxiliary elastic element in automobile suspension. The lateral stabilizer bar plays an important role in increasing the suspension stiffness. The vehicle with lateral stabilizer bar is stable and comfortable, and the turnover probability is greatly reduced. The design and verification of stabilizer bar is always the focus of research. Now the finite element method is used, the design stress of the stabilizing rod can not be too high, and the quenching and tempering heat treatment method must be used. Heat treatment is the key process to ensure the stability and reliability of the stabilizer. Metallographic structure is the key factor to determine the fatigue life of the stabilizer bar. The structure of coarse and free ferrite and other non martensitic structure can reduce the fatigue life of the stabilizer bar. To strengthen the control of heat treatment process and to take appropriate measures to prevent the stability of the rod to produce bad metallurgical structure.
出处
《汽车实用技术》
2017年第11期37-40,共4页
Automobile Applied Technology
关键词
横向稳定杆
疲劳寿命
热处理
金相组织
transverse stabilizer
rod fatigue life
heat treatment
metallographic structure
