锻压技术

液压胀形环境下管材的力学行为

英文标题：Mechanical behavior of tube in hydroforming

作者：刘建伟1 姚馨淇2 李玉寒1 杨连发2

单位：（1. 桂林电子科技大学机电综合工程训练国家级实验教学示范中心广西桂林 541004 2. 桂林电子科技大学机电工程学院广西桂林 541004）

分类号：TG394

出版年,卷(期):页码：2019,44(2):1-6

摘要：

管材液压胀形技术在轻量化、一体化制造领域具有很好的发展前景和应用价值。为了更好地分析与研究该技术，结合国内外学者的研究进展，对液压胀形下管材的力学行为进行了全面地分析与总结。首先，对金属薄壁管在液压胀形下力学模型的构建方法进行了介绍，并分析了力学模型在塑性本构关系构建和管材成形性等方面的具体应用；然后，分析了双金属复合管液压胀形的成形机理及成形过程中的力学行为；最后，对管材液压胀形技术的发展趋势进行了阐述。通过对近年来管材液压胀形力学行为的分析与总结，为管材液压胀形技术的发展提供了有益参考。

Hydroforming has a promising prospect and application in the field of lightweight and integrated manufacturing. In order to better analyze and study the technology, combining with the research progress of scholars at home and abroad, the mechanical behavior of tube in hydroforming was comprehensively analyzed and summarized. Firstly, the construction method of mechanical model for thinwalled metal tube in hydroforming was introduced, and the specific application in mechanical model of plastic constitutive relationship and formability of tube was analyzed. Secondly, the forming mechanism and mechanical behavior during the forming process of bimetallic composite tube were analyzed. Finally, the development trend of tube hydroforming technology was expounded. Through the analysis and summary on mechanical behavior of tube under hydroforming in recent years, the positive references for the development of tube hydroforming were provided.

基金项目：

基金项目:国家自然科学基金资助项目（51765013、51564007）；广西自然科学基金资助项目（2016GXNSFAA380135）；广西高等学校千名中青年骨干教师培育计划

作者简介：刘建伟（1978-），男，博士，教授 Email：liujianwei78988@163.com

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