(1. 北京工业大学 机械工程与应用电子技术学院，北京 100124；
2. 北京航空制造工程研究所 高能束流加工技术重点实验室，北京 100024)
摘 要: 通过嵌入过渡金属材料及调节焊接工艺的方法，优化嵌入法电子束焊接接头焊缝中合金元素成分，并且有效控制焊缝成分的均匀性，从而改善焊接接头力学性能。研究结果表明：嵌入法焊接接头强度与母材的相当，冲击韧性较常规工艺焊接接头有显著提高，升幅超过50%，并且有效降低焊接接头疲劳寿命的分散度。
关键字: 钛合金；嵌入法；电子束焊接
embedded electron beam weld
（1. College of Mechanical Engineering and Applied Electronics Technology,
Beijing University of Technology, Beijing 100124, China;
2. National Key Laboratory of Science and Technology on Power Beam Processes,
Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China）
Abstract:The embedded electron beam welding is a process that inserts transition metals to accomplish the electron beam welding. It changes alloy composition of welds and controls the uniformity of alloy composition, thus improves the mechanical properties of TA15 titanium alloy electron beam welded joint. The welded joint strength is almost the same as that of base metal. The impact toughness is improved by 50% as compared with the traditional electron beam welding, and the dispersion of fatigue life prediction of weld-joints decreases significantly.
Key words: titanium alloy；embeded methoded; electron beam weld
