工艺参数对简单断面型钢辊弯成型过程的影响

EFFECTS OF FORMING PARAMETERS ON ROLL FORMING OF A SIMPLE SECTION STEEL

采用B3样条有限条法研究成型工艺参数（如弯曲角增量、带材厚度、材料屈服极限、翼缘长度、腹板宽度和机架间距等）对槽钢辊弯成型过程带材边部纵向薄膜应变峰值的影响.带材边部纵向薄膜应变峰值随着弯曲角增量、带材厚度、材料屈服极限、翼缘长度和腹板宽度增加而增加、随着机架间距的增大而减小.研究结果与辊弯成型过程中观察到的现象完全一致.

A B-3-spline finite strip method was employed to investigate the effects of forming parameters such as the bend angle increment, the strip thickness, the material yield limit, the flange length, the web width, and the distance between two roll stations on the peak of the longitudinal edge membrane strain developed in the cold roll forming of a channel section. The peak of the longitudinal edge membrane strain increases with increasing the bend angle, the strip thickness, the material yield limit, the flange length and the web width, but decreases with increasing the distance between two roll stations. The investigated results are consistent with the phenomena observed in the previous roll forming practice.