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Direct-Write Deposition and Laser Processing of Dry Fine powders

Published online by Cambridge University Press:  01 February 2011

Pranav Kumar  and
Suman Das
Pranav Kumar
Affiliation:
Mechanical Engineering Department, University of Michigan Ann Arbor, MI 48109–2125, U.S.A.
Suman Das
Affiliation:
Mechanical Engineering Department, University of Michigan Ann Arbor, MI 48109–2125, U.S.A.
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Abstract

We present a concept for multi-material solid freeform fabrication of 2D and layered 3D heterogeneous components. This technique involves direct-write deposition of multiple, patterned powder materials followed by laser processing. The direct-write deposition system features miniature hopper-nozzles for depositing dry powdered materials by gravity or by high frequency vibration-assisted flow onto a movable substrate. A dual wavelength laser processing workstation was used to consolidate the deposited pattern to desired densities. The feasibility of this concept was proved by direct-writing and laser processing various powder material patterns.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 860: Symposium LL – Materials Issues in Solid Freeforming , 2004 , LL4.5
Copyright
Copyright © Materials Research Society 2005

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References

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