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Metal powder production by gas atomizationThe confined liquid, gas-atomization process was investigated. Results from a two-dimensional water model showed the importance of atomization pressure, as well as delivery tube and atomizer design. The atomization process at the tip of the delivery tube was photographed. Results from the atomization of a modified 7075 aluminum alloy yielded up to 60 wt pct. powders that were finer than 45 microns in diameter. Two different atomizer designs were evaluated. The amount of fine powders produced was correlated to a calculated gas-power term. An optimal gas-power value existed for maximized fine powder production. Atomization at gas-power greater than or less than this optimal value produced coarser powders.
Document ID
19860054866
Document Type
Conference Paper
Authors
Ting, E. Y. (Grumman Research Center Bethpage, NY, United States)
Grant, N. J. (MIT Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Subject Category
METALLIC MATERIALS
Distribution Limits
Public
Copyright
Other