In literature I found different laser efficiency values starting from 30-45%, do you think it's due to the varying materials, metal powder quality, printing environment or the difference in efficiency is due to different brands/marks of metal 3D printers?
Ijaz Akbar.
Absolutely, it depends on the inherent properties of the material used, such as reflectivity, thermal conductivity, and absorption coefficient, which play a major role. Metal powder characteristics, like particle size and surface morphology also impact efficiency. A, rougher surfaces can scatter the laser beam, reducing its efficiency.
While the printer brand may have a less impact on efficiency. If the printer is well-calibrated for the specific material, it's still a contributing factor.
In metal additive manufacturing, laser efficiency is material-dependent. The interaction dynamics throughout the procedure vary depending on the substance being employed. Furthermore, adjusting laser energy distribution using beam-shaping algorithms may considerably enhance production efficiency and printing quality. Keep in mind that various materials may respond differently to laser energy throughout the additive manufacturing process. For example ALSi10Mg is one of the tricky powder materials in SLM due to its characteristics
check these articles:
https://doi.org/10.1038/s43246-020-00094-y
Article Beam shaping technology and its application in metal laser a...
Article Laser additive manufacturing of metallic components: Materia...
Article Additive Manufacturing for Lightweighting Satellite Platform
Article Part defects identification in selective laser melting via d...
https://hdl.handle.net/10210/8880
I also suggest you check the effect of material characteristics in additive manufacturing books
Hi,
This issue was thoroughly discussed in this article:
https://doi.org/10.1007/s12540-023-01444-4
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