论文部分内容阅读
真空电子束焊有三个基本特点:热源功率密度高,容易控制和在真空中进行焊接。因此,十几年来,国外真空电子束焊在原子能、航空与宇宙航行工业中得到了迅速的发展和广泛的应用。近几年来,随着民用工业的发展,新设计、新产品不断增多,对产品的制造工艺要求也越来越高。因此,要求焊接工艺也向高质量、高精度、高效率、低成本方面发展。十几年来电子束焊接的实践表明,它不仅可以满足这些要求,而且还很有潜力。目前国外电子束焊用于汽车、工具、机械、电子和科研等民用工业部门占整个应用领域的比例如下.美
Vacuum electron beam welding has three basic features: high heat power density, easy control and welding in a vacuum. Therefore, more than a decade, foreign vacuum electron beam welding in the atomic energy, aviation and aerospace industry has been rapid development and extensive application. In recent years, with the development of civilian industry, the number of new designs and new products has been on the rise, and the manufacturing process of the products has become increasingly demanding. Therefore, the welding process is also required to high-quality, high precision, high efficiency, low cost development. The practice of electron beam welding for over a decade has shown that it not only meets these requirements but also has great potential. The current foreign electron beam welding for the automotive, tools, machinery, electronics and scientific research and other civilian industrial sectors as a percentage of the entire application area is as follows.