• Title/Summary/Keyword: Beadmark

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The Study on Microstructure of the Heat Affected Zone for Removing of Beadmark in the Overlayered Wrapping Roll (오버레이용접된 Wrapping Roll의 비드마크제거를 위한 열영향부의 미세조직에 관한 연구)

  • 유국종;백응률
    • Journal of Welding and Joining
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    • v.18 no.6
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    • pp.68-73
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    • 2000
  • In case of overalyered wrapping roll, beadmark shape appear at wrapping roll surface due to irregular wear between weld bead. Irregular wear of this is caused by difference of hardness between weld bead. This study aims at investigating which matrix is good for removing of beadmark at wrapping roll surface. So, we make specimen with martensitic matrix and austenitic matrix. The overlayered alloys were deposited 4 times on a SS41 steel plate using self-shielding flux cored arc welding method. Difference of hardness between weld bead of specimen with matrix of martensite was higher than specimen with matrix of austenite both as-welded and after heat treatment. Therefore, austenitic matrix is between than martensitic matrix for removing of beadmark of wrapping roll surface.

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The Microstructure For Removing of Beadmark of Hardfacing Wrapping Roll (육성용접된 Wrapping Roll의 비드마크제거를 위한 미세조직)

  • 유국종;백응률
    • Proceedings of the KWS Conference
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    • 2000.10a
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    • pp.216-218
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    • 2000
  • In case of hardfaced wrapping roll, beadmark shape appear at wrapping roll surface due to irregular wear between weld bead. Irregular wear of this is caused by difference of hardness between weld bead. This study aims at investigating which matrix is good for removing of beadmark at wrapping roll surface. So, we make specimen with martensitic matrix and austenitic matrix. The hardfacing alloys were deposited 4 times on a SS41 steel plate using self-shielding flux cored arc welding method. Difference of hardness between weld bead of specimen with matrix of martensite was higher than specimen with matrix of austenite both as-welded and after heat treatment. Therefore, austenitic matrix is better than martensitic matrix for removing of beadmark of wrapping roll surface.

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