Title

Characteristics of laser-fabricated metal structures

Abstract

Laser-aided direct fabrication technology is developed to produce three-dimensional metal alloy structures directly from the constituent elements. The shapes of the structures are designed using Computer Aided Design (CAD) tools and are fabricated as real parts by fusing powders with a laser beam. In this study, alloy structures of simple plate like geometry were produced by mixing stainless steel (SS 316) powder with either copper or aluminum powder. The thickness of the component is related to the process parameters through an energy balance equation, which is verified against experimental data. Material properties such as hardness, strength and conductivity are analyzed and optical micrographs are presented to exhibit the microstructure of the alloy. The results show improved hardness at certain locations in the alloy, higher thermal conductivity of stainless steel. However, the structures broke due to brittle failure under tensile loads.

Publication Date

1-1-1998

Publication Title

Materials and Manufacturing Processes

Volume

13

Issue

4

Number of Pages

537-554

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/10426919808935274

Socpus ID

0032116415 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0032116415

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