(北京航空制造工程研究所，北京 100024)
摘 要: 对20 mm 厚TA15钛合金板在不同工艺条件下的电子束焊接接头组织进行研究。比较分析了钉形、钟罩形、楔形和漏斗形焊缝不同区域的组织特点。结果表明：TA15薄板电子束焊接的接头形貌和组织主要由焊接速度和束流强度决定，当两个工艺参数配合得当，接头可以获得较好的组织。
关键字: 电子束焊；钛合金；接头组织
TA15 titanium alloy
（Beijing Aeronautical Manufacturing Technology Research Institute, Beijing100024, China）
Abstract:The electron beam welding (EBW) joints microstructures obtain by different technologies of TA15Ti alloy with thickness of 20 mm were investigated. Microstructures of different areas such kinds of welds as nail, hood, cuniform and infundibular were compared. The results show that sheet welding joints appearances are determined by the parameters of welding rate and current intensity. When the both parameters are satisfactory, the good properties can be get.
Key words: electron beam welding; titanium alloy; welding joints structure
