Key technology and equipment for local heating roll-forming of high strength square tube

2019 International Conference on Advances in Materials, Mechanical and Manufacturing

材料科学;机械制造

Peng, Xue-Feng^1 ; Han, Jing-Tao^2 ; Dai, Zong-Miao^1

Ninth Department, 713th Research Institute of China Shipbuilding Industry Corporation, Zhengzhou

450015, China^1

School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing

100083, China^2

关键词: Automobile lightweights;    Dimensional accuracy;    Key technologies;    Manufacturing technologies;    Performance tests;    Roll forming process;    Safety performance;    Technical equipments;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/576/1/012003/pdf
DOI  :  10.1088/1757-899X/576/1/012003

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The application of advanced high strength steel and the development innovation manufacturing technology is an effective way to realize the automobile lightweight and improve the safety performance design of high strength steel products. In this paper, a local heating "square to square" roll-forming process was proposed to solve the difficult problems of the introducing high strength steel into the traditional roll-forming equipment. Two kinds of inductors structure were compared and analyzed. Based on the "round to square" process, the size design of the rollers in forming process was deduced by the mutual relationship of the angle. And the relationship between the frame layout was given. The calculation of example and the key technical equipment were completed. Based on this new technology, the performance test of high strength tubes was carried out. It was found that the mechanical properties of the corner and the dimensional accuracy of the section are significantly improved. The research shows that this key technology and equipment of hot roll-forming can effectively overcome the problems of high strength steel.