Selective laser melting technology: From the single laser melted track stability to 3D parts of complex shape

By I. Yadroitsev, I. Smurov. 2010

331 citations recorded by the source corpus.

To up-grade SLM process for manufacturing real components, high mechanical properties of final product must be achieved. The properties of a part produced by SLM technology depend strongly on the properties of each single track and each single layer. In this study, effects of the processing parameters such as laser power, scanning speed and powder layer thickness on the single tracks formation are analyzed. It is shown that, by choosing an optimal technological window and appropriate strategy of SLM, it is possible to manufacture highly complex parts with mechanical properties comparable to those of wrought material.

Subfields: Automotive Engineering, Industrial and Manufacturing Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/a63f65def3016b1b1f2c49b453ad855bd5da27a8

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Citations in the corpus

A review on the state-of-the-art of surface finishing processes and related ISO/ASTM standards for metal additive manufactured components (2020, positive): “…49–98 µm (EBM) Material: F2924 and F3001 (Triantaphyllou et al. 2015) Layer distortion Laser scan speed Process: SLM Material: F3184, F3055 0.04–0.28 m/s (Yadroitsev and Smurov 2010) Balling melts (1) Powder size (2) Laser power (3) Scan speed (4) Different oxygen content in the build…”
Improving the fatigue behaviour of a selectively laser melted aluminium alloy: Influence of heat treatment and surface quality (2016, background): “Additive manufacturing (AM) via selective laser melting (SLM) enables the fabrication of geometrically complex structures, providing various industrial sectors with a range of opportunities, such as light-weighting and added functionality [1, 2].”
Measurement Science Needs for Real-time Control of Additive Manufacturing Powder Bed Fusion Processes (2015, background): “A considerable negative correlation is found between the thermal conductivity of bulk material and the range of optimal scanning speed for the continuous single track sintering [88].”
Review on powder-bed laser additive manufacturing of Inconel 718 parts (2015, background): “Furthermore, the geometrically complex components with high dimensional precision and good surface integrity can be obtained precisely by the SLM process without subsequent process requirements, which the conventional methods cannot keep pace with easily [31].”
Density of additively-manufactured, 316L SS parts using laser powder-bed fusion at powers up to 400 W (2014, background): “Prior work of Yasa (2011) had indicated that, for the parameter ranges considered in their experiments, the laser power, scan speed, layer thickness, and scan spacing were the most important process parameters in generating high-density parts.”