中文摘要：

为了实现变厚度过渡区轧制形状尺寸的精确控制,本文提出了四种类型过渡区,并建立了四种类型过渡区曲线的数学模型,分析了差厚板过渡区轧制中轧辊中心运动轨迹,建立了过渡区轧制轧件出口水平速度与轧辊垂直压下速度的匹配关系。带有直线主导型过渡区的差厚板应用于上汽集团汽车仪表板横梁钢管的制作,取得了良好的减重效果。按照本文给出的理论与方法控制过渡区厚度,其实测厚度结果与设定值符合很好,其最大偏差为0.056 mm,偏差标准差为0.014 mm。研究结果对加快国产差厚板在汽车轻量化中应用提供了参考。

英文摘要：

To achieve precise control in rolling the transition zone of tailor rolled blanks, we propose four types of transition zone and derive four equations for the transition zone curves. We analyzed the trajectory of the roll center and established the matching relation between the rolling speed of the workpiece and the vertical velocity of the roller pressure in the transition zone of tailor rolled blanks. We applied a tailor rolled blank with a linear transition zone to the manufacturing of crossbeams for car meter panels, achieving a good reduction in weight. Based on the theory and method used in our study, we were able to control the thickness of the transition zone. The measured thickness was in good agreement with the set value, the maximum deviation was 0.056 mm, and its standard deviation was 0.014 mm. Thus, the research results provide a reference for promoting the application of tailor rolled blanks in domestic automobile manufacturing. ? 2017, Editorial Department of Journal of HEU. All right reserved.