高性能管材二辊皮尔格冷轧成形研究动态及存在问题  

Two-Roller Cold Pilger Rolling of High-Performance Tube: A Critical Review

作　　者：李恒[1,2] 魏栋 杨恒[1,2] 李光俊 张铎[1,2] LI Heng;WEI Dong;YANG Heng;LI Guangjun;ZHANG Duo(State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China;Department of Materials Forming and Control Engineering, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China;AVIC Chengdu Aircraft Industry (Group) Co., Ltd., Chengdu 610092, China)

机构地区：[1]西北工业大学凝固技术国家重点实验室,西安710072 [2]西北工业大学材料学院材料成型及控制系,西安710072 [3]航空工业成都飞机工业(集团)有限公司,成都610092

出　　处：《航空制造技术》2018年第21期16-24,共9页Aeronautical Manufacturing Technology

基　　金：国家自然科学基金(51522509;51775441)

摘　　要：如何实现高性能轻量化管材的成形成性一体化协同制备一直是航空航天等先进制造领域迫切需要解决的关键难题之一。相比拉拔和挤压等工艺,二辊皮尔格冷轧兼具3向压应力和局部渐进增量成形的加载特点,具有大变形、表面质量好及尺寸精度高等优势,是高性能难变形材料管材制备最有效的手段之一。然而,皮尔格冷轧是一个多行程、非稳态和多因素、非线性的复杂成形过程,工艺流程和模具参数设计不合理或波动极易导致产品精度和性能出现严重波动。在简述二辊皮尔格冷轧成形原理和特点的基础上,着重从宏观不均匀变形和细观织构演变两个方面综述了二辊皮尔格冷轧成形的研究动态。基于上述研究动态分析,总结提出了实现二辊皮尔格冷轧过程成形成性一体化协同控制尚待解决的科学问题和技术挑战。How to achieve the synchronous coordinating of dimensional and properties of high-performance and lightweight tubes has been a key issue in advanced manufacturing in many high-end industries such as aerospace.As one of preferred fabrication technologies for hard-to-deform tubes in aerospace industry,two-roller cold pilger rolling has unique advantages of large deformation,fine surface,and close dimensional tolerance since materials are incrementally subjected to triaxial compressive stress dominated local loading compared with drawing and extrusion,etc.However,the cold pilgering is a multi-stroke,non-steady,nonlinear and multi-factor coupling physical process.Unsuitable processing parameters may significantly affect both inhomogeneous deformation and texture evolution,thus easily resulting in the fluctuation of dimensions and properties of final tube product.The principle and characteristics of two-roller cold pilger rolling are firstly introduced,and then the studies on macro inhomogeneous deformation and micro texture evolution during cold pilger rolling are reviewed.The challenges on the synchronous coordinating of dimensions and properties of tubular materials during two roller cold pilger rolling are attempted to be summarized.

关 键 词：二辊皮尔格冷轧 高性能难变形管材 宏观不均匀变形 细观织构 协同控制 

分 类 号：TG335.7[金属学及工艺—金属压力加工] V261[航空宇航科学与技术—航空宇航制造工程]