METAL SHEETS SPOT WELDING WITH INOCULATION AGENTS

文件类型：PDF文档
文件大小：273K
The present invention relates to a method of spot-welding two sheets mainly made of galvanized steel, including the following methods : predetermining a position area of two sheets in which a welding point is formed, and which are in contact with each other; forming a small hole in a center of the position area of at least one of the two sheets; introducing particles of an inoculation agent into the hole; and passing a current into the two sheets through a pair of electrodes to thereby spot-weld the sheets, wherein the particles include at least one material selected from one group made of (a) a C + Ti-B alloy; and (b) an Al-Ti-B-Re alloy + C.COPYRIGHT KIPO 2018