Apparatus for gas-metal arc deposition

Patent · Tue Oct 01 00:00:00 EDT 1991

OSTI ID:5765761

Buhrmaster, C L; Clark, D E; Smartt, H B

This patent describes an apparatus for gas- metal arc deposition of metal, metal alloys, and metal matrix composites. The apparatus contains an arc chamber for confining a D.C. electrical arc discharge, the arc chamber containing an outlet orifice in fluid communication with a deposition chamber having a deposition opening in alignment with the orifice for depositing metal droplets on a coatable substrate. Metal wire is passed continuously into the arc chamber in alignment with the orifice. Electric arcing between the metal wire anode and the orifice cathode produces droplets of molten metal from the wire which pass through the orifice and into the deposition chamber for coating a substrate exposed at the deposition opening. When producing metal matrix composites, a suspension of particulates in an inert gas enters the deposition chamber via a plurality of feed openings below and around the orifice so that reinforcing particulates join the metal droplets to produce a uniform mixture which then coats the exposed substrate with a uniform metal matrix composite.

• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5052331; A
• Application Number: PPN: US 7-529412
• OSTI ID: 5765761
• Resource Relation: Patent File Date: 29 May 1990
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
ELECTRODEPOSITED COATINGS
FABRICATION
GAS METAL-ARC WELDING
EQUIPMENT
ANODES
CATHODES
REINFORCED MATERIALS
THIN FILMS
WIRES
YOUNG MODULUS
ARC WELDING
COATINGS
ELECTRODES
FILMS
JOINING
MATERIALS
MECHANICAL PROPERTIES
WELDING
360601* - Other Materials- Preparation & Manufacture