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Improving the shotblasting process for making crossbow springs using x-ray diffraction for measuring residual strength
Mejoramiento del proceso de granallado para resortes de ballesta utilizando medición de esfuerzos residuales por difracción de rayos X
DOI:
https://doi.org/10.15446/ing.investig.v24n3.14608Keywords:
X-ray diffraction, residual strength, fatigue, fatigue-freeting, shotblasting, almen, SEM (en)difracción de rayos X, esfuerzos residuales, fatiga, fatiga-fretting, granalla, granallado, probeta Almen, SEM (es)
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Different residual strength profiles were measured by X-ray diffraction in areas close to the surface of AISI-SAE 5160H steel used in making crossbow springs. Different shotblasting conditions were used and an experimental design was developed for finding process conditions offering suitable Almen intensity and residual strength profile when compression was applied. The combination of variables was chosen which tended to present the most suitable results within the parameters used in making springs in the same conditions, cycle them and determine their behavior in fatigue tests.
Se midieron diferentes perfiles de esfuerzos residuales por difracción de rayos X en las zonas cercanas a la superficie de un acero AISI-SAE 5160H empleado en la fabricación de resortes de ballesta, utilizando diferentes condiciones de granallado y desarrollando un diseño de experimentos para encontrar condiciones de proceso que ofrezcan intensidades Almen y perfiles de esfuerzos residuales en compresión adecuados. Por último, se escogieron las combinaciones de variables que tienden a presentar los resultados más adecuados bajo los parámetros utilizados en el estudio realizado, con el fin de fabricar resortes bajo las mismas condiciones y finalmente ciclarlos y determinar su comportamiento en pruebas de fatiga.
References
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Schreiber, R. H., Untersuchugen zum Duerschwingverhalten des Kugelgestrahlten Eisantzatahles 16MnCr5 in Verscindenen Wärmemebehandlungsztaänden Dist. Univ. Karlsruhe, Germany, 1976.
X Ray Diffraction Residual Stress Technique, Paul Prevey, Lambda Research Inc. Metals Handbook 10, Metals Park OH, American Society for Metals, pp 380 - 392, 1987. DOI: https://doi.org/10.31399/asm.hb.v10.a0001761
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Copyright (c) 2004 Héctor Hernández, Alexander Viloria, Yulieth Arango, Augusto Jiménez, Henry Mendoza, Jhon Cadena
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