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Effect of Temperature and Water Immersion on Strength Properties of Spot Welded Zincked Steel Plates

점용접 아연도금강판의 강도특성에 미치는 온도 및 침수의 영향

  • 서도원 (전북대학교 기계항공시스템공학부, 자동차신기술 연구센터) ;
  • 최준용 (전북대학교 공과대학 기계설계학과) ;
  • 임재규 (전북대학교 기계항공시스템공학부, 자동차신기술 연구센터)
  • Published : 2004.12.01

Abstract

A spot welded structures have an influence on a diverse climatic situation, for instance temperature, humidity and precipitation. In addition factors of environmental pollution such as acid rain, that courses corrosion, have the tendency to increase. But spot welded structures strength is affected by humidity and environment temperature. Therefore, it is important to evaluate effect of temperature and water immersion on strength properties of spot welded part. In this study, the strength distribution of spot welded plates is evaluated the environmental temperature of zinc coated steel plates. Test is conducted with welded part immersed in distilled and synthetic sea water. Specimens are immersed into water for 10, 100, 500 and 1000 hours to evaluate the offsets of water immersion time on tensile-shear strength under the conditions of -40, 0, 20 and 5$0^{\circ}C$. From this result, spot welded specimens with 5 mm clearance have lower tensile-shear strength in the distilled water or synthetic sea water than without clearance. And they have lower tensile-shear strength under -4$0^{\circ}C$ and over 5$0^{\circ}C$.

Keywords

Temperature;Distilled Water;Synthetic Sea Water;Water Immersion;Strength;Zincked Steel Plate

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