| 摘要 |
PURPOSE:To reduce a welding manhour without spoiling the welding quality of the welding joint of a dissimilar material by performing a joint welding after welding in advance the material consisting of a dissimilar material or the material manufactured by a welding metal on either both part or end face of one side of the welding joint. CONSTITUTION:A welding manhour and welding amount are reduced by performing the butt joint welding of a dissimilar material after welding the stock of a dissimilar material or the material manufactured by a welding metal by fitting to the end face of the dissimilar material of one part to be abutted by inserting into the butt space of the dissimilar material. For instance the joint welding is performed with a welding metal 4 by abutting a stainless steel 3 after welding the one side end part of a ferrite steel 1 and the material 2 that the material is of a stainless or inconel and its one end face is subjected to a beveling as shown by a welding metal part 5 at the counter beveling side. The operability is improved by executing the beveling for joint welding in advance on the material 2.
|
