Selective laser melting

Brandner, J.J., Hansjosten, E., Anurjew, E., Pfleging, W. and Schubert, K. (2007) Microstructure devices generation by selective laser melting. Proceedings of... 

Example Solid freeform fabrication (SFF) techniques such as selective laser melting (SLM) and sintering (SLS) are often prized for being much cleaner than conventional machining processes and being able to fabricate products with minimum waste (e.g., Bourell et al. 2009). 

In the last year, the application of selective laser melting (SLM) to ceramics has also been tried, and proved to work. The principle of this technique was described above. First preliminary experiments showed promising results [23]. 

Figure 4.16 Micro-heat exchangers fabricated using selective laser melting.

Osakada, K. and Masanori, S. (2006). Elexible manufacturing of metallic products by selective laser melting of powder. Int. J. Machine Tools and Manufacture, Vol. 46, No. 11, pp. 1188-1193. 

Figure 2.9 Schematic sketch of the selective laser melting technology for metals.

Laser beam build-up welding, selective laser melting,... 

Thin horizontal, vertical selective laser melting plates and rolled plates of 1.5-2.5 mm have been used as substrate materials for a laser melting deposition process to analyze the tensile properties, microhardness, microstructure, and internal defects. 

The laser deposition process epitaxially generates coarse columnar crystals, and laser remelting reduces the microhardness of the selective laser melting substrate in the 2 mm to 3 mm thick grain increased heat affected zone (31). 

Kruth J-P, Mercelis P, Van Vaerenbergh J, Froy-en L, Rombouts M. Binding mechanisms in selective laser sintering and selective laser melting. Rapid Prototyping J 2005 ll 26-36. 

Figure 27 Additive manufacturing by selective laser melting. With kind permission from SFB 814, Additive Manufacturing, http Ainvw.sfb814.forschung.uni-erlangen.org/.

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