Study on a straightening process by reciprocating bending for metal profiles

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING Metallurgical Research & Technology Pub Date : 2021-01-01 DOI:10.1051/metal/2021081

Q. Meng, G. Yu, Xue-ying Huang, Hong-Lei Sun, Jun-min Zhao

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引用次数: 4

Abstract

The straightness is a critical quality parameter of metal profiles, and straightening is a necessary process in metal profile production. Due to the limitations of the existing straightening methods, the straightening process by reciprocating bending for metal profiles is proposed. The curvature is unified by multiple reciprocating bending, and then the straightening is completed by reverse bending. The process has the advantages of high straightening efficiency, flexibility, and wide straightening range. In order to verify the feasibility of the process, numerical simulation and physical experiment are carried out with the rectangular section profile with “C” shape and “S” shape. The results show the profiles of different shapes are unified into arcs of the same size after multiple reciprocating bending. In addition, the smaller the elastic area ratio (ratio of elastic deformation to overall deformation) is, the better the effect of unification curvature is. The residual deflection is basically the same after straightening, and straightness is within 0.1%.

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金属型材往复弯曲矫直工艺研究

直线度是金属型材的重要质量参数，矫直是金属型材生产的必要工序。针对现有矫直方法的局限性，提出了金属型材往复弯曲矫直工艺。通过多次往复弯曲统一曲率，再通过反向弯曲完成矫直。该工艺具有矫直效率高、矫直灵活、矫直范围宽等优点。为了验证该工艺的可行性，分别对“C”形和“S”形矩形截面型材进行了数值模拟和物理实验。结果表明:经多次往复弯曲后，不同形状的型材统一成相同尺寸的圆弧;此外，弹性面积比(弹性变形与整体变形之比)越小，统一曲率的效果越好。矫直后残余挠度基本相同，矫直度在0.1%以内。

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来源期刊

Metallurgical Research & Technology METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

1.70

自引率

9.10%

发文量

审稿时长

4.4 months

期刊介绍： Metallurgical Research and Technology (MRT) is a peer-reviewed bi-monthly journal publishing original high-quality research papers in areas ranging from process metallurgy to metal product properties and applications of ferrous and non-ferrous metals and alloys, including light-metals. It covers also the materials involved in the metal processing as ores, refractories and slags. The journal is listed in the citation index Web of Science and has an Impact Factor. It is highly concerned by the technological innovation as a support of the metallurgical industry at a time when it has to tackle severe challenges like energy, raw materials, sustainability, environment... Strengthening and enhancing the dialogue between science and industry is at the heart of the scope of MRT. This is why it welcomes manuscripts focusing on industrial practice, as well as basic metallurgical knowledge or review articles.