Transactions of Materials and Heat Treatment

Title：Analysis on the wrinkling in continuous roll forming

Authors： Chen Qingmin Hu Weixue Li Mingzhe Cai Zhongyi

Unit： Jilin University

KeyWords： sheet metal forming rolling PRO CMM wrinkling three-dimensional surface

ClassificationCode：TG335

year,vol(issue):pagenumber：2016,41(9):52-57

Abstract：

3D continuous roll forming is a new type of sheet metal forming technology. A double curvature

part can be formed by a pair of bendable rolls and formed roll gap. The influence of the

maximum compression ratio and the thickness of the sheet on the wrinkling defects were studied

by numerical simulation method. The results show that when the maximum compression ratio is

too large, wrinkling appears on the edges of the saddle surface parts and central area for the

convex surface parts. Furthermore, the wrinkling degree increases with the increase of the

maximum compression ratio. Increasing thickness of the plate can reduce the degree of

wrinkling. Experiments were conducted to verify the numerical simulation results, and the

wrinkling degree of experimental parts were measured and analyzed by PRO CMM optical tracker

equipment. The experimental results show the validity of the simulation results.

Funds：

国家自然科学基金资助项目（51275202）

陈庆敏（1965-），男，学士，工程师

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