Mechanical properties of low carbon steel produced by gmaw-based additive manufacturing
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Tarih
2021
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info:eu-repo/semantics/openAccess
Özet
Wire arc additive manufacturing has high flexibility and efficiency, especially for the economical production of large-size metal parts and a range of applications that require relatively high deposition rates. In this study, the variation of the mechanical properties (tensile strength and microhardness) of the part produced by GMAW-based additive manufacturing from low carbon steel wire according to the deformation rate was investigated. In this context, tensile tests at 1 and 4 mm/sec speeds were applied to the samples prepared perpendicular and parallel to the seam direction from the additive manufacturing part. In the samples perpendicular to the weld seam direction, an increase in tensile strength was observed with an increase in the deformation rate due to the anisotropic behavior in ductility, while a decrease in percent elongation was determined. With the increase of the tensile speed four times, the average tensile strength of the sample parallel to the seam direction was 545 MPa, and the vertical specimen was 524 MPa. In the sample parallel to the seam direction, there was an increase in microhardness as a result of tensile deformation compared to the original sample, while this increase was calculated as 56% and 64% on average for 1 mm/sec and 4 mm/sec, respectively. Although there was a slight decrease in this ratio in samples perpendicular to the seam direction, the increase in microhardness values compared to the original sample was determined as 46% and 53%, respectively.
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Gazi Mühendislik Bilimleri Dergisi
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Cilt
7
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3
