薄壁、高强度TC4管坯锻造有限元数值模拟

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英文篇名：Finite Element Numerical Simulation of Thin-walled and High-strength TC4 Tube Billet for Forging 作者：高婷 ; 周立鹏 ; 朱峰 ; 倪沛彤 ; 韩明臣 ; 王成长 ; 薛少博 英文作者：GAO Ting;ZHOU Lipeng;ZHU Feng;NI Peitong;HAN Mingchen;WANG Chengzhang;XUE Shaobo;Northwest Institute for Nonferrous Metal Research;College of Metallurgical Engineering,Xi,an University of Architecture and Technology; 关键词：TC4管坯 ; 锻造 ; 有限元模拟 英文关键词：TC4tube billet;;forging;;finite numerical simulation 中文刊名：YOUS 英文刊名：Nonferrous Metals Engineering 机构：西北有色金属研究院;西安建筑科技大学冶金工程学院; 出版日期：2019-03-25 出版单位：有色金属工程 年：2019 期：v.9 基金：陕西省工业科技攻关项目(2015GY156)~~ 语种：中文; 页：YOUS201903004 页数：5 CN：03 ISSN：10-1004/TF 分类号：23-27

摘要

采用DEFORM软件对薄壁、高强度TC4管材挤压管坯锻造过程中的温度场、等效应力及等效应变进行模拟分析。模拟结果表明,工件外表面和上下端面边缘处在锻造过程中温度下降幅度大,工件心部升温较明显,生产中应防止工件心部出现过热现象;流变应力随应变的增大或温度的降低而增大,应防止工件表面出现裂纹。实验结果表明,基于此模拟过程制备出的薄壁、高强度TC4管材组织均匀性好,力学性能较高,且一致性良好,满足使用要求。
        The temperature field,equivalent stress and equivalent strain of the thin-walled and high-strength TC4 forging were simulated by DEFORM software.The simulation results show that the temperature drop of the outer surface and the upper and lower end edges of the workpiece is large during the forging process,and the temperature rise of the workpiece core is obvious.The overheating of the workpiece core should be prevented during production;the flow stress increases with strain increases or temperature decrease,cracks should be prevented on the surface of the workpiece.The experimental results show that the thin-walled and high-strength TC4 Tube Billet prepared based on this simulation process has a good uniformity,high mechanical properties,good consistency and meet the requirements of use.

引文

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