Abstract Scope |
The aim of this paper is to characterize the dynamic material property of the aluminum alloy, AlSi10Mg under high strain rate compressive loading. From literature reviews, it was found that the characteristic of dynamic deformation behaviors of aluminum alloys under both compressive and tensile loading conditions by using split Hopkinson pressure bar techniques were different. In this work, we performed experiments at high strain rate compressive loadings on selective laser melted (SLM) samples with a split Hopkinson pressure bar. The samples were produced at five different layer orientations, such as 0⁰, 30⁰, 45⁰, 60⁰, and 90⁰ with three different global energy density (GED) values. The GED value of a sample is related to laser power, scan speed, hatch spacing, and layer thickness of the SLM process. In our study, we found the characteristic material deformation behavior depends on building layer orientations and the GED values. |