Process Research on the Laser Rapid Manufacturing Technology

Abstract:

Laser additive direct deposition of metals is a new rapid manufacturing technology, which combines with computer aided design, laser cladding and rapid prototyping. The advanced technology can build fully-dense metal components directly from the information transferred from a computer file by depositing metal powders layer by layer with neither mould nor tool. Based on the theory of this technology, an experimental setup for laser rapid manufacturing process was developed. Through this state-of-the-art automated apparatus, some cladding experiments were performed to grasp the process features of laser rapid manufacturing technology. Finally, the columnar/equiaxed grain growth transition model is used to explain the morphology characteristic. Accordingly, the appropriate microstructure can be obtained by adjusting the processing parameters.

• Periodical: Advanced Materials Research (Volumes 97-101)
• Pages: 4042-4045
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.97-101.4042
• Online since: March 2010
• Authors: Kai Zhang, Wei Jun Liu, Xiao Feng Shang
• Keywords: Columnar Equiaxed Transition (CET), Directional Solidification, Laser Rapid Manufacturing, Metallurgical Bonding, Stainless Steel 316

References

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