METAL SHEETS SPOT WELDING WITH INOCULATION AGENTS

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The present invention relates to a spot welding method of two sheets mainly formed by zinc plated steel sheets, comprising : a step of preliminarily determining a position area where a welding spot is formed in two sheets coming in contact with each other; a step of applying substances having inoculation agents on at least one surface among two sheets in the preliminarily described position area; and a step of spot-welding the preliminarily described two sheets by enabling a current to flow through the sheets via a pair of electrodes wherein particles includes at least one substance selected from a group including C + Ti-B alloy (a) and Al-Ti-B-Re alloy + C (b).COPYRIGHT KIPO 2018