| 摘要 |
PURPOSE: A spot welder with a reel shaped electrode is provided in which a shape of an electrode tip is always constant so that dressing of the electrode tip is not required, thereby improving quality of welding, and use cycle of the tip is long enough to simplify the process, thereby contributing to economic efficiency. CONSTITUTION: The spot welder with an electrode part(100) comprises supporting members(111) one end of which have curved surfaces, grooves are formed on the circumference of the curved surfaces, the other end of which are connected to main bodies so that electric current can flow through, and which are transferred side to side by controlling of a control part so as to pressing weldment; electrode wires(200) of copper wire which are capable of passing through between the grooves; first reels(210) on which the electrode wires(200) are coiled; and second reels(220) which can be coiled after performing welding with the electrode wires(200) coiled on the first reels(210) being placed across the grooves of the supporting members(111), wherein the supporting members(111) are made with a stainless steel material which has the worst weldability with the electrode wires(200) of copper wire so as to prevent the electrode wires(200) from being stuck to the part between the grooves of the supporting members(111) due to high heating generated during welding.
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