Effects of Upset Conditions on Friction Welding Characteristics of Spheroidal Graphite Cast Iron to Mild Steel

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  • 球状黒鉛鋳鉄と軟鋼との摩擦圧接特性に及ぼすアプセット条件の影響
  • キュウジョウ コクエン チュウテツ ト ナンコウ ト ノ マサツ アッセツ トクセイ ニ オヨボス アプセット ジョウケン ノ エイキョウ

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Abstract

  Effect of upset conditions on the friction welding characteristics of spheroidal graphite cast iron (FCD) to mild steel (S20C) were examined. Friction welding was carried out under various welding conditions of forge pressure and break timing. The dimensions of the test pieces were 15 mm in diameter and 70 mm in length, respectively.<br>  Micro and macroscopic observations were carried out to examine the changes in the area of the deformed layer of spheroidal graphite (DLSG). The tensile strength and forge length were also investigated.<br>  The area of DLSG, tensile strength, and forge length were found to be influenced by the forge pressure and break timing. The tensile strength was very high under the appropriate forge pressure and break timing.

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