Hostname: page-component-77c89778f8-n9wrp Total loading time: 0 Render date: 2024-07-16T19:47:35.431Z Has data issue: false hasContentIssue false
  • English
  • Français

Study of GMAW Process Parameters on the Mechanisms of Wear in Contact Tips C12200 Alloy

Published online by Cambridge University Press:  11 May 2015

Luis A. López ,
Gladys Y. Perez ,
Felipe J. Garcia  and
Víctor H. López
Luis A. López
Affiliation:
Corporación Mexicana de Investigación en Materiales (COMIMSA), Calle ciencia y tecnología No. 790, Col. Saltillo 400, cp. 25290, Coahuila, México. E-mail: alberto.lopez@comimsa.com
Gladys Y. Perez
Affiliation:
Corporación Mexicana de Investigación en Materiales (COMIMSA), Calle ciencia y tecnología No. 790, Col. Saltillo 400, cp. 25290, Coahuila, México. E-mail: alberto.lopez@comimsa.com
Felipe J. Garcia
Affiliation:
Corporación Mexicana de Investigación en Materiales (COMIMSA), Calle ciencia y tecnología No. 790, Col. Saltillo 400, cp. 25290, Coahuila, México. E-mail: alberto.lopez@comimsa.com
Víctor H. López
Affiliation:
Corporación Mexicana de Investigación en Materiales (COMIMSA), Calle ciencia y tecnología No. 790, Col. Saltillo 400, cp. 25290, Coahuila, México. E-mail: alberto.lopez@comimsa.com
Get access

Abstract

This paper focuses on the impact of process parameters of gas metal arc welding (GMAW) on the mechanisms of fail and wear present in the contact tips (CT), component located in the welding gun, when high strength low alloy (HSLA) steel is welded with ER70S - 0.045” copper coated electrode in manual mode. By means of chemical analysis the alloy was identified as C12200. It was also identified that the maximum temperature reached by the CT is 850° C. 30 samples were obtained that had different lifetime, which were analyzed by stereoscope and its behavior against wear was determined by using an equation of relative wear. Microstructural changes as recrystallization and grain growth undergone by these CT were also evidenced by light microscopy. In addition the changes in their mechanical properties such as decrease in their hardness to about of half that initially had. Finally some significant samples were analyzed by scanning electron microscopy (SEM); microanalysis was used to identify the exchange of matter leaving from the electrode in the CT and spatter into the hole of the component.

Keywords

Alloyweldingstrengthhardnessscanning electron microscopy (SEM)
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1766: Symposium 5B – Structural and Chemical Characterization of Metals, Alloys, and Compounds—2014 , 2015 , pp. 53 - 62
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

O’Brien, R.L., Manual de soldadura, AWS, 8th Edition, 110 (1996).Google Scholar
Althouse, A.D., Turnquist, C.H., Modern Welding, 11 th Edition, 233 (2013).Google Scholar
Kristóf, D., Németh, L., Design Fabrication and Economy of Metal Structures, Budapest, Hungary, 489 (2013).CrossRefGoogle Scholar
Villafuerte, J., Welding journal, 78, 29 (1999).Google Scholar
Cooper Development Association Inc. Properties of Wrought and Cast Copper Alloys. A Copper Alliance (http://www.copper.org/resources/properties/db/basic-search.php) Accessed 30 Jul (2013).Google Scholar
Kim, N.H., Kim, K.H., Kim, H.J., Ryoo, H.S., Koh, J.H., Journal of KWS, 22, 43 (2004).Google Scholar
Kim, N.H., Kim, K.H., Ryoo, H.S., Development of Cr- Cu Contact Tips for GMAW Welding, Journal of KWS, 23.Google Scholar
Vander Voort, G.F., Metallography, principles and practice, McGraw Hill New York, ASM International, USA (1984).Google Scholar
Villafuerte, J., Tregaskiss R y D Doc. 2001 (1997).Google Scholar
Yamada, T., Tanaka, O., Welding Journal, 66, 35 (1987).Google Scholar
Adam, B.G., Siewert, T.A., Quinn, T.P., Vigliotti, D.P., Welding Journal, 37 (2001).Google Scholar
Shimizu, H., Yokota, Y., Mizuno, M., Kurokawa, T., Science and Technology of Welding and Joining, 11, 94 (2006).CrossRefGoogle Scholar
Their, H., Polrolniczak, H., Schreiber, S., Schweissen und Schneiden, 47, no.5, (English translation of text and captions pp. 356, 358, 360, 362, 365.E88-E90).Google Scholar
Degtyarev, V.G., Novikov, M.P., Voropai, N.M.; Paton, Welding Journal 3, 4, 290 (1991).Google Scholar