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Title: Method and apparatus for cutting and abrading with sublimable particles

A gas delivery system provides a first gas as a liquid under extreme pressure and as a gas under intermediate pressure. Another gas delivery system provides a second gas under moderate pressure. The second gas is selected to solidify at a temperature at or above the temperature of the liquefied gas. A nozzle assembly connected to the gas delivery systems produces a stream containing a liquid component, a solid component, and a gas component. The liquid component of the stream consists of a high velocity jet of the liquefied first gas. The high velocity jet is surrounded by a particle sheath that consists of solid particles of the second gas which solidifies in the nozzle upon contact with the liquefied gas of the high velocity jet. The gas component of the stream is a high velocity flow of the first gas that encircles the particle sheath, forming an outer jacket. 6 figs.
Inventors:
Issue Date:
OSTI Identifier:
119060
Assignee:
Lockheed Idaho Technologies Co., Idaho Falls, ID (United States) PTO; SCA: 360101; 360201; 360601; PA: EDB-95:149088; SN: 95001477088
Patent Number(s):
US 5,456,629/A/
Application Number:
PAN: 8-178,533
Contract Number:
AC07-76ID01570
Resource Relation:
Other Information: PBD: 10 Oct 1995
Research Org:
EG & G Idaho Inc
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CUTTING TOOLS; DESIGN; MACHINE TOOLS; MATERIALS; MACHINING; MULTIPHASE FLOW; SOLIDIFICATION; ABRASION; ABRASIVES