Tensile and low cycle fatigue properties of high strength steel DP590 used for automotive chassis parts are evaluated. Test specimens are made of DP590 plate after painting and baking process. Load cell calibration, extensometer calibration and specim...
Tensile and low cycle fatigue properties of high strength steel DP590 used for automotive chassis parts are evaluated. Test specimens are made of DP590 plate after painting and baking process. Load cell calibration, extensometer calibration and specimen alignment are performed to enhance the accuracy and precision. In addition, the guiding apparatus is made in order to prevent buckling when compression loading is present. When DP590 replaces SAPH370, the fatigue life of the lower control arm increases by 2 or 3 times.