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Tailor Rolled Blank (TRB) and Longitudinal Profile plate (LP plate) are both new products for materials saving. TRB produced by cold rolling can partially substitute for Tailor Welded Blank (TWB) achieving lightweight in vehicles. LP plate produced by hot rolling can be utilized in shipbuilding, bridge manufacturing and constructions, realizing structures lightweight. This paper stressed the common point of TRB and LP plate: Variable Gauge Rolling (VGR). Basic equations of VGR were deduced, a velocity relationship which assures the shape and dimension of transition region was provided, a FEM simulation of VGR was performed, VGR experiments were carried out and TRB samples with a thickness ratio 1:2 were obtained. All above achievements have established a foundation for VGR’s industrial application.
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Liu et al. (2012) studied this question.