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Article

Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process

by
Cecilio López
1,
Alex Elías-Zúñiga
2,*,
Isaac Jiménez
2,
Oscar Martínez-Romero
2,
Héctor R. Siller
3 and
José M. Diabb
2
1
Honeywell Aerospace, Parque Industrial Ávalos, Vialidad Tabalaopa 8507, Chihuahua 31074, Chih., Mexico
2
Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey 64849, NL, Mexico
3
Department of Engineering Technology, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
*
Author to whom correspondence should be addressed.
Materials 2018, 11(12), 2542; https://doi.org/10.3390/ma11122542
Submission received: 13 November 2018 / Revised: 8 December 2018 / Accepted: 11 December 2018 / Published: 13 December 2018
(This article belongs to the Special Issue Machining—Recent Advances, Applications and Challenges)
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Abstract

This paper focuses on investigating the residual stress values associated with a part fabricated by Selective Laser Melting technology (SLM) when this is subjected further to forces on single point incremental forming (SPIF) operation of variable wall angle. The residual stresses induced by the SLM manufacturing process on the fabricated AlSi10Mg metallic sheets, as well as those produced during their forming SPIF operation were determined by X-ray diffraction (XRD) measurements. Significant residual stress levels of variation, positive or negative, along the metallic sample were observed because of the bending effects induced by the SPIF processes. It is also shown how the wall thickness varies along the additive manufactured SPIFed part as well as the morphology of the melting pools as a function of the deformation depth.
Keywords: additive manufacturing; single point incremental sheet forming; residual stresses; X-ray diffraction additive manufacturing; single point incremental sheet forming; residual stresses; X-ray diffraction
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MDPI and ACS Style

López, C.; Elías-Zúñiga, A.; Jiménez, I.; Martínez-Romero, O.; R. Siller, H.; Diabb, J.M. Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process. Materials 2018, 11, 2542. https://doi.org/10.3390/ma11122542

AMA Style

López C, Elías-Zúñiga A, Jiménez I, Martínez-Romero O, R. Siller H, Diabb JM. Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process. Materials. 2018; 11(12):2542. https://doi.org/10.3390/ma11122542

Chicago/Turabian Style

López, Cecilio, Alex Elías-Zúñiga, Isaac Jiménez, Oscar Martínez-Romero, Héctor R. Siller, and José M. Diabb. 2018. "Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process" Materials 11, no. 12: 2542. https://doi.org/10.3390/ma11122542

APA Style

López, C., Elías-Zúñiga, A., Jiménez, I., Martínez-Romero, O., R. Siller, H., & Diabb, J. M. (2018). Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process. Materials, 11(12), 2542. https://doi.org/10.3390/ma11122542

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