Tension and Curvature Effect for Strip Specific Elongation During Stretcher-bender Levelling

This paper introduces that the tension and the curvature are different effects on strip specific elongation during stretcher-bender leveling,and analyzes quantitatively the max efficiency of the tension and the curvature effects for the specific elongation. The result indicates the curvature his main effect on the specific elongation that maximum. efficiency can be 77% ~ 98% and minimum value can be 53%,and the tension just has less effect on the elongation that max. efficiency is about 8% ~ 47% and its min. value is about 2%.