Degradation mechanism of electrode tip during alternate resistance spot welding of zinc-coated galvannealed and un-coated steel sheets

Masatsune Kondo, Tokujiro Konishi, Koji Nomura, Hiroyuki Kokawa

研究成果: Article査読

3 被引用数 (Scopus)

抄録

This study investigated the electrode life and the electrode degradation mechanism during alternate resistance spot welding of galvannealed steel sheets and bare steel sheets. As the result, it was found that the electrode life in this type of welding was extremely short in comparison to welding of only galvannealed steel sheets. The reason for this short life is explained by the sticking of the alloy layers formed on the electrode top to the bare steel sheet surface, so that the narrower and sharper shape as the original electrode top is the better to prolong the life. Although the ring-shape nuggets were not formed during alternate resistance DC welding, the electrode degradation mechanism is similar to that during the resistance DC welding of only galvannealed steel sheets.

本文言語English
ページ(範囲)352-359
ページ数8
ジャーナルYosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society
27
4
DOI
出版ステータスPublished - 2009

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 表面、皮膜および薄膜
  • 金属および合金

フィンガープリント

「Degradation mechanism of electrode tip during alternate resistance spot welding of zinc-coated galvannealed and un-coated steel sheets」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル