A novel combined process of flaring-upsetting for forming end flanges on thin-walled tubes

被引：2

作者：

Guan, Yang ^{[1
]}

Li, Chen ^{[1
]}

Guo, Shiyong ^{[1
]}

Lin, Peng ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Engn Res Ctr Adv Met Composites Forming Technol &, Minist Educ, Taiyuan 030024, Peoples R China

来源：

JOURNAL OF MANUFACTURING PROCESSES | 2022年 / 84卷

基金：

中国国家自然科学基金;

关键词：

Thin-walled tube end flange; Flaring-upsetting combined process; Defect transfer; SHAFTS;

D O I：

10.1016/j.jmapro.2022.10.051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tube components with end flanges are widely used in piping systems of industrial fields. Generally, folding defects are prone to generate in the upsetting of the end flange tubes, for which the size of the end flanges is limited. In this paper, a novel process combining the flaring and upsetting deformation is proposed for forming the end flanges on thin-walled tubes. First, the flaring-upsetting combined process of thin-walled rings was studied to clarify the influence of the flaring pre-deformation on the subsequent upsetting deformation behavior. It is concluded that the position and size of defects depend on the flaring angle, the ratio of height to thickness and the upsetting reduction. Furthermore, the novel process is applied for forming the tube end flanges. Under proper parameters, the folds with little increase in size were transferred to the upper surface, which can be removed by machining without any harm to the flange quality. Therefore, the process is conducive to fabricating thin-walled tubes with wider flanges.

引用

页码：927 / 936

页数：10