Performance aspects of de Laval spray-forming nozzles

Conference · Fri Jan 01 04:00:00 EST 1993

OSTI ID:6402758

McHugh, K M; Key, J F

Spray forming is a multiphase fabrication technology in which a spray of finely atomized liquid droplets is directed onto a suitably shaped substrate or pattern to produce a coherent, near-net-shape deposit The technology can simplify materials processing where simultaneously improving product quality. Researchers at the Idaho National Engineering Laboratory (INEL) are developing spray-forming technology for producing near-net-shape solids and coatings of a variety of metals, polymers, and composite materials using de Laval nozzles. Here we briefly describe the flow field characterization and atomization behavior of liquid metals in linear de Laval nozzles, and illustrate their versatility by summarizing results from three spray-forming programs. In one program, low-carbon steel strip >0.75 mm was produced. In another program, polymer membranes [approximately] 5 [mu]m thick were spray formed. Finally, recent results in spray forming molds, dies, and related tooling for rapid prototyping are described.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6402758
• Report Number(s): EGG-M-92696; CONF-9306165---1; ON: DE93013671
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360601 -- Other Materials-- Preparation & Manufacture
ALLOYS
ATOMIZATION
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
DEPOSITION
ELECTRON MICROSCOPY
ELEMENTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
METALS
MICROSCOPY
MICROSTRUCTURE
NOZZLES
PERFORMANCE
POLYMERS
SCANNING ELECTRON MICROSCOPY
SPRAY COATING
STEELS
SURFACE COATING
TIN