焊管2025，Vol.48Issue(5)：52-57,6.DOI:10.19291/j.cnki.1001-3938.2025.05.007
Ti2AlNb合金电子束焊接温度场模拟分析
Simulation Analysis of Temperature Field in Electron Beam Welding of Ti2AlNb Alloy
摘要
Abstract
To investigate the optimal welding parameters of Ti2AlNb alloy,the finite element method is used to simulate the electron beam welding process of a 5 mm thick Ti2AlNb alloy flat plate,and obtains the distribution pattern of the welding temperature field under different electron beam streams,analyzes the characteristics of the welding thermal cycle along the center line of the weld and in the vertical welding direction,and predicts the width of the upper surface of the molten pool according to the thermal cycle curve.The results show that the use of a composite heat source can accurately simulate the Ti2AlNb alloy electron beam welding.When increasing the electron current,the melt pool width and melt depth increases,while the depth to width ratio decreases.Comparison of experimental and simulated weld morphology verifies the reasonableness of this simulation.Considering the welding temperature field,weld morphology and cost saving factors,a suitable electron beam current of 15 mA is inferred.关键词
钛铝铌合金/电子束焊/温度场/焊缝形貌Key words
Ti2AlNb alloy/electron beam welding/temperature field/weld morphology分类
金属材料引用本文复制引用
王世清,张一,强伟,路永新,金峰..Ti2AlNb合金电子束焊接温度场模拟分析[J].焊管,2025,48(5):52-57,6.基金项目
国家自然科学基金"基于TiB2调控凝固行为的Ti2AlNb电子束焊接高温增塑及防裂机理研究"(项目编号51975469) （项目编号51975469）
哈尔滨工业大学先进焊接与连接国家重点实验室开放课题"地质钻头表面增材关键技术研究"(项目编号AWJ-22M09) （项目编号AWJ-22M09）
陕西省重点研发计划"钛合金钻杆连续驱动摩擦焊缝组织控制关键技术研究"(项目编号2022GY-224) （项目编号2022GY-224）
郑州机械研究所新型钎焊材料与技术国家重点实验室开放课题"硬岩钻进地质钻头金刚石聚晶与钢基体钎焊工艺及可行性研究"(项目编号SKLABFMT-2019-04). （项目编号SKLABFMT-2019-04）
