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国家自然科学基金(50905144): 作品数：18被引量：211H指数：9; 导出分析报告; 相关作者：杨合李恒田玉丽王泽康逯若东更多>>; 相关机构：西北工业大学成都飞机工业(集团)有限责任公司成都飞机工业集团更多>>; 相关期刊：《Transactions of Nonferrous Metals Society of China》《稀有金属材料与工程》《材料科学与工艺》《Progress in Natural Science:Materials International》更多>>; 相关主题：BENDINGTHIN-WALLED数控弯曲TUBEWARM更多>>; 相关领域：金属学及工艺一般工业技术航空宇航科学技术理学更多>>

A modified Johnson-Cook model for NC warm bending of large diameter thin-walled Ti-6Al-4V tube in wide ranges of strain rates and temperatures被引量：6: 《Transactions of Nonferrous Metals Society of China》2018年第2期298-308,共11页陶智君樊晓光杨合马俊李恒; Projects(50905144,51275415)supported by the National Natural Science Foundation of China;Project supported by the Program for New Century Excellent Talents in University,China;Project(3102014KYJD001)supported by Fundamental Research Funds for the Central Universities,China;Project(B08040)supported by Program of Introducing Talents of Discipline to Universities("111"Project),China; Numerical control（NC） warm bending is a proven strategy to form the large diameter thin-walled（LDTW） Ti-6 Al-4 V tubes, which are typical light-weight and high-performance structural components urgently required i...; 关键词：NC warm bending Ti-6Al-4V tube Johnson-Cook model

薄壁纯钛管数控弯曲成形性能研究（英文）被引量：4: 《稀有金属材料与工程》2018年第1期26-32,共7页李光俊杨恒许旭东李恒杨合; National Natural Science Foundation of China(50905144);NPU Foundation for Fundamental Research(JC201028);National Science Fund for Excellent Young Scholars(51522509); 研究了薄壁纯钛(CP-Ti)管在不同弯曲半径和不同材料性能下的多缺陷约束数控弯曲成形性能,通过显式/隐式三维有限元模型和实验研究了先进轻量化材料CP-Ti的成形潜力。结果表明:管材的硬化指数、厚向异性指数和杨氏模量的变化对弯曲成形...; 关键词：弯曲商业纯钛管成形性能材料性能缺陷

Constitutive modeling of compression behavior of TC4 tube based on modified Arrhenius and artificial neural network models被引量：5: 《Rare Metals》2016年第2期162-171,共10页Zhi-Jun Tao He Yang Heng Li Jun Ma Peng-Fei Gao; financially supported by the National Natural Science Foundation of China(Nos.51275415 and50905144);the Natural Science Basic Research Plan in Shanxi Province(No.2011JQ6004);the Program of the Ministry of Education of China for Introducing Talents of Discipline to Universities(No.B08040); Warm rotary draw bending provides a feasible method to form the large-diameter thin-walled（LDTW）TC4 bent tubes, which are widely used in the pneumatic system of aircrafts. An accurate prediction of flow behavior of ...; 关键词：TC4 tube Compression behavior Constitutive model Modified Arrhenius model Neural network model

Quasi-static tensile behavior of large-diameter thin-walled Ti–6Al–4V tubes at elevated temperature被引量：7: 《Chinese Journal of Aeronautics》2016年第2期542-553,共12页Tao Zhijun Yang He Li Heng Fan Xiaoguang; support of the National Natural Science Foundation of China(No.51275415 and No.50905144);the program for New Century Excellent Talents in University;the Natural Science Basic Research Plan in Shaanxi Province(No.2011JQ6004)of China;the fund of the State Key Laboratory of Solidification Processing in NWPU of China;the 111 Project(No.B08040)of China; As promising light-weight and high-performance structure components, large-diameter thin-walled （LDTW） Ti 6Al^4V titanium alloy （TC4） bent tubes are needed most urgently in many industries such as aviation and aer...; 关键词：FRACTOGRAPHY LDTW TC4 tube Strain rate Tensile behavior Warm bending

Tribological behaviors between commercial pure titanium sheet and tools in warm forming被引量：1: 《Transactions of Nonferrous Metals Society of China》2015年第9期2924-2931,共8页马俊杨合李恒王丹李光俊; Projects(50905144,51275415)supported by the National Natural Science Foundation of China;Project(3102014KYJD001)supported by Fundamental Research Funds for the Central Universities,China;Project(B08040)supported by the Program of Introducing Talents of Discipline to Universities("111"Project); The tribological conditions between tools and sheet are the major factors affecting the product quality,forming limits and service life of tools in thin-walled titanium components warm forming.Using the orthogonal des...; 关键词：CP-3 titanium sheet warm forming LUBRICATION coefficient of friction

Warm bending mechanism of extrados and intrados of large diameter thin-walled CP-Ti tubes被引量：2: 《Transactions of Nonferrous Metals Society of China》2014年第10期3257-3264,共8页张晓丽杨合李恒张志勇李龙; Projects(50905144,51275415)supported by the National Natural Science Foundation of China;Project supported by the Program for New Century Excellent Talents in University,China;Project(B08040)supported by the Program of Introducing Talents of Discipline to Universities,China("111"Project); In order to develop the warming bending technology of the large diameter thin-walled（LDTW） commercial pure titanium alloy CP-Ti tubes, the warm bending mechanism of the extrados and intrados of LDTW CP-Ti tubes was ...; 关键词：large diameter thin-walled CP-Ti bent tube warm bending texture TWINNING deformation mechanism

Advance and trend of friction study in plastic forming被引量：9: 《Transactions of Nonferrous Metals Society of China》2014年第5期1263-1272,共10页王丹杨合李恒; Projects(50905144,51275415)supported by the National Natural Science Foundation of China;Project(B08040)supported by the Program for New Century Excellent Talents in University,China; Friction is a critical issue in plastic forming which influences forming force, metal flow, forming quality and service life of die. Since friction is a highly nonlinear physical phenomenon which is interactively affe...; 关键词：plastic forming friction model LUBRICANT friction coefficient

‘Size effect’ related bending formability of thin-walled aluminum alloy tube被引量：18: 《Chinese Journal of Aeronautics》2013年第1期230-241,共12页Li Heng Yang He Zhang Zhiyong Wang Zekang; the National Natural Science Foundation of China (No. 50905144);the Program for New Century Excellent Talents in University, the Natural Science Basic Research Plan in Shaanxi Province (No. 2011JQ6004);the 111 Project (No. B08040) for the support given to this research; Aluminum alloy （Al-alloy） thin-walled （D/t ＆gt; 20, diameter D, wall thickness t） bent tubes have attracted increasing applications in many industries with mass quantities and diverse specifications due to satisf...; 关键词：Al-alloy Bending formability FLATTENING Size effect Tube bending Wall thinning WRINKLING

6061-T4薄壁铝合金管数控弯曲回弹规律(英文)被引量：7: 《中国有色金属学会会刊：英文版》2012年第S2期357-363,共7页李恒师开鹏杨合田玉丽; Project (50905144) supported by the National Natural Science Foundation of China;Program for New Century Excellent Talents in University;Projects (2011JQ6004) supported by Natural Science Basic Research Plan in Shaanxi Province;Project (B08040) supported by Programmer of Introducing Talents of Discipline to Universities ("111" Project); 以规格为50.8mm×0.889mm(管材外径×管材壁厚)的高性能薄壁6061-T4铝合金管为对象,采用单因素实验分析和基于全过程三维有限元模拟的正交方法,获得多个弯曲成形参数对6061-T4薄壁铝合金管数控弯管回弹的影响。结果表明:1)弯管回弹角随...; 关键词：回弹铝合金管弯管绕弯有限元正交分析

Geometry-dependent springback behaviors of thin-walled tube upon cold bending被引量：10: 《Science China(Technological Sciences)》2012年第12期3469-3482,共14页LI Heng YANG He TIAN YuLi LI GuangJun WANG ZhengHua; supported by the National Natural Science Foundation of China (Grant No. 50905144);Program for New Century Excellent Talentsin University;the fund of the State Key Laboratory of Solidification Processing in NWPU;the Natural Science Basic Research Plan in Shaanxi Province (Grant No. 2011JQ6004);the 111 Project (Grant No.B08040); As one kind of key lightweight components with enormous quantities and diversities, the bent tubular parts have attracted in- creasing applications in aerospace, automobile, etc. Thus, how the inevitable springback be...; 关键词：SPRINGBACK geometry dependence thin-walled tube BENDING aluminum alloy

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