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TECHNICAL PAPERS

Successive Deposition of Metals in Solid Freeform Fabrication Processes, Part 2: Thermomechanical Models of Adjacent Droplets

[+] Author and Article Information
R. K. Chin, J. L. Beuth, C. H. Amon

Department of Mechanical Engineering, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, PA 15213

J. Manuf. Sci. Eng 123(4), 632-638 (May 01, 2000) (7 pages) doi:10.1115/1.1380200 History: Received September 01, 1999; Revised May 01, 2000
Copyright © 2001 by ASME
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References

Figures

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Schematics of successive deposition models for (a) adjacent, separated droplets (b) adjacent, connected droplets and (c) adjacent, separated droplets on a thin substrate
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Mesh and boundary conditions for the model of adjacent, separated droplets
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Mesh and boundary conditions for the model of adjacent, connected droplets
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Contour plots of temperatures 0.5 s after deposition of a first droplet, taken from (a) 3-D and (b) 2-D axisymmetric simulations
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Temperature distributions under the centerline of each separated droplet 0.5 s and 1.5 s after deposition of the previous droplet
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Stress distributions in the deposition direction, σxx, under the centerline of each droplet 0.5 s after deposition of the previous droplet and at steady state
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Stress distributions in the deposition direction, σxx, and transverse to the deposition direction, σyy, under the centerline of a third deposited droplet
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Temperature distributions under the centerline of each connected droplet 0.5 s and 1.5 s after deposition of the previous droplet
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Temperatures in a semi-infinite substrate calculated using Eq. (1)
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Temperature distributions under the centerline of each separated droplet deposited onto a thin substrate 0.5 s and 1.5 s after deposition of the previous droplet

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