一、前言 采用焊接管坯取代拉伸管坯制造波纹管,不仅生产周期短,而且质量好,成品率高,成本低。特别是直径大的簿壁管坯,拉伸十分困难,采用焊接法制造波纹管管坯,是既可靠,又经济的方法。本文介绍了壁厚为0.3mm因康镍718材料管坯的焊接难点及解决措施。对该材料的焊接性及超簿板焊接的主要问题——变形和烧穿进行了分析,得 First, the introduction The use of welded tube instead of drawing tube manufacturing bellows, not only short production cycle, and good quality, high yield, low cost. Especially the large diameter of the wall tube, drawing is very difficult, the use of welding pipe manufacturing bellows, is both reliable and economical method. This paper introduces the welding difficulties and solutions for the pipe with a wall thickness of 0.3mm due to Kang 718 material. The weldability of the material and the main problems of super-plate welding - deformation and burn through were analyzed, too