SPOT WELDING METHOD

SPOT WELDING METHOD

To provide a spot welding method capable of enlarging a proper current range of spot welding by preventing more surely occurrence of scattering.SOLUTION: There is provided a spot welding method by welding two or more metal plates mainly composed of iron on top of each other. The method includes a fi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ABE YOSUKE, YOSHIOKA NOBUYORI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:To provide a spot welding method capable of enlarging a proper current range of spot welding by preventing more surely occurrence of scattering.SOLUTION: There is provided a spot welding method by welding two or more metal plates mainly composed of iron on top of each other. The method includes a first energization process for energizing for 2-50 msec by a first current of 10 kA or higher and 25 kA or lower, a cooling process for 5-100 msec, and a second energization process for energizing for 20-200 msec by a second current of 5 kA or higher and 25 kA or lower. A spot welded joint manufactured by the method is also provided.SELECTED DRAWING: Figure 1 【課題】 より確実に散りの発生を防止し、スポット溶接の適正電流範囲を拡大しうるスポット溶接方法を提供する。【解決手段】 鉄を主成分とする２枚以上の金属板を重ね合わせて溶接するスポット溶接方法であって、１０ｋＡ以上２５ｋＡの以下の第一電流で、２〜５０ｍｓｅｃ通電する第一通電工程と、５〜１００ｍｓｅｃの冷却工程と、５ｋＡ以上２５ｋＡ以下の第二電流で、２０〜２００ｍｓｅｃ通電する第二通電工程とを含む、方法、並びに当該方法により製造されたスポット溶接継手。【選択図】 図１