The Evolution of Transversal Surface Defects in the Axisymmetric Drawing of Copper Bars

Frederico de Castro Magalhães; Antonio Eustaquio de Melo Pertence; Haroldo Béria Campos; Maria Teresa Paulino Aguilar; Paulo Roberto Cetlin

doi:10.4028/www.scientific.net/AMR.89-91.142

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 89-91The Evolution of Transversal Surface Defects in...

The Evolution of Transversal Surface Defects in the Axisymmetric Drawing of Copper Bars

Abstract:

Surface defects are an inevitable characteristic of the raw material employed in the drawing of copper wires. These defects may cause problems in the processing of the material, both during the drawing down to wires and in the final manufacturing of artifacts with the produced wire. The literature reports few analyses covering the importance of these initial defects, as well as concerning their evolution or eventual healing during the drawing. The present paper presents such an analysis for a 12.7 mm diameter copper bar displaying artificial defects 1mm wide and 0.3mm deep. Low angle drawing led to the almost complete healing of the defect after three drawing passes with a 10% reduction of area each. The use of a high semi-angle die led to a completely different situation, where no such defect healing was observed.

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Periodical:

Advanced Materials Research (Volumes 89-91)

Pages:

142-146

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.89-91.142

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Online since:

January 2010

Authors:

Frederico de Castro Magalhães, Antonio Eustaquio de Melo Pertence, Haroldo Béria Campos, Maria Teresa Paulino Aguilar, Paulo Roberto Cetlin

Keywords:

Axisymmetric Drawing, Copper (Cu), Surface Defect

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References

[1] E. H. Chia, G. R. Patel. Characterization of Rod and Wire Defects Produced During the Manufacturing of Copper. Wire Journal International. June, (1996). p.50.

Google Scholar

[2] M. E. Laverroux, J. Marandel. Stalinless Steel Spring Wires With Music Wire Mechanical Characteristics. Wire Journal International. October , (1999). p.82.

Google Scholar

[3] Metals Handbook. Materials Selection and Design. American Society for Metals - ASM International. Vol. 20, (2002), p.771.

Google Scholar

[4] B. Yalamanchili, J. Nelson Jr., P. M. Power. Identification and Prevention of Mechanical Damage to Wire Rod at �orth Star Steel Texas. Wire Journal International. April, (2000), p.234.

Google Scholar

[5] Information on http: /www. abrasivesnet. com.

Google Scholar

[6] Catalogue of Drawing Defects. Informationsgesellschaft Verlag.

Google Scholar

[7] Information on http: /www. abrasivesnet. com.

Google Scholar

[8] Metals Handbook. Failure Analysis and Prevention. American Society for Metals - ASM International. Vol. 11, (2002), p.193.

Google Scholar