Analysis of Orange Peel Defects in Cold Rolled Sheet
Abstract：Because orange peel defects appeared in the surface of St13 cold-rolled sheet after deep punching, seriously affecting the use performance, the process parameters and the samples from the sheet with defects were analyzed. The results showed that the chemical composition met the requirement and the annealing parameters were regular, but mixed grain phenomenon in the microstructure of the sample and a smell yield point jog existed in the tension test of the simple. The fluctuation of hot rolling process and small rolling force in leveling process are main reasons caused the orange peel defects. Through strengthening process control in hot rolling and optimizing leveling parameter, the yield point jog and orange peel defect were eliminated.
Keywords：St13cold-rolled sheetdeep punchingorange peel defectyield point jog
Publication Date：2013-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)