Abstract
This paper provides a historical perspective on the development of the Varestraint testing method as well as the design of a new Varestraint testing machine, utilized on a daily basis in the aerospace industry to solve hot cracking issues in production. The paper also discloses the importance in choosing the right testing parameters in order to minimize scatter in test results and to be able to make a reliable judgment in susceptibility towards hot cracking. Weld current, weld speed, bending rate and strain level as well as the evaluation procedure with i.e. measurement errors are included in the analyses.
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References
“A new Approach to the Study of Hot Cracking in Fusion Welds”, Carl D. Lundin, PhD. Dissertation, Rensselaer Polytechnic Institute, Materials Science and Engineering, July 1966.
“The Varestraint Test,” Welding Journal, 44 (10), 1965, pp. 433s-442s, Carl D. Lundin and W. F. Savage
“Application of the Varestraint Technique to the Study of Weldability”, Welding Journal, 45 (11), 1966, pp. 497s-503s, Carl D. Lundin and W. F. Savage.
“Weldability of Nuclear Grade Stainless Steels,” A Group Sponsored Program, Welding Research Council Bulletin # 509, February 2006, Carl D. Lundin, C. H. Lee, C.Y.P. Qiao and G. W, Batten
“Effect of Iron on the Hot Cracking of Uranium Weld Metal - Part I” Welding Journal, December 1970, V. 49 (12), pp. 29-39, Carl D. Lundin and P. W. Turner.
“The Varestraint Test,” Welding Research Council Bulletin, 280, August 1982., pp 1-19, Carl D. Lundin, A. C. Lingenfelter, G.E. Grotke, G.G. Lessmann and S. J. Mathews.
Standardization of the Transvarestraint test, M.S. Thesis, The Ohio State University, 2003, Finton, T.
“Six Sigma – The Pragmatic Approach”, Studentlitteratur, Sverige, 2003, Magnusson K., Bergman B. Häyhänen P., Kroslid D., Findlay Mills D.
Acknowledgements
Mr. Johannes Nilsson and Mr. Oscar Nilsson are highly appreciated for their input and support in the statistical analyses of this work.
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© 2016 Springer International Publishing Switzerland
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Andersson, J., Jacobsson, J., Lundin, C. (2016). A Historical Perspective on Varestraint Testing and the Importance of Testing Parameters. In: Boellinghaus, T., Lippold, J., Cross, C. (eds) Cracking Phenomena in Welds IV. Springer, Cham. https://doi.org/10.1007/978-3-319-28434-7_1
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DOI: https://doi.org/10.1007/978-3-319-28434-7_1
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