Tensile Testing on Formability of Different Gauge Tailor-Welded Blanks

ABSTRACT

The formability of tailor welded blanks (TWBs) which combined with different blanks is difference to single material blanks. It has the benefits to improve the forming process by the study on the formability of TWBs. As an effective and practical material property test method, tensile test were applied to study it. Base material and tailor welded blanks test specimens had been designed for tensile testing and the test was carried out. The strength and plastic properties of different TWBs were acquired and the results were discussed. The results of tensile test indicated that the tensile strength of TWBs was between higher strength base material and lower one but formability was lower than any base material. At the same time the weld line location in the TWBs had a significant impact on the formability also.