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Title: Method for gas-metal arc deposition

Abstract

Method and apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites are disclosed. 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. 1 fig.

Inventors:
; ;
Issue Date:
OSTI Identifier:
7168047
Patent Number(s):
4970091
Application Number:
PPN: US 7-423172
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Resource Relation:
Patent File Date: 18 Oct 1989
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALLOYS; ELECTRODEPOSITION; COMPOSITE MATERIALS; METALS; DESIGN; ELECTRIC ARCS; EQUIPMENT; LIQUID METALS; CURRENTS; DEPOSITION; ELECTRIC CURRENTS; ELECTRIC DISCHARGES; ELECTROLYSIS; ELEMENTS; FLUIDS; LIQUIDS; LYSIS; MATERIALS; SURFACE COATING; 360101* - Metals & Alloys- Preparation & Fabrication; 360601 - Other Materials- Preparation & Manufacture

Citation Formats

Buhrmaster, C L, Clark, D E, and Smartt, H B. Method for gas-metal arc deposition. United States: N. p., 1990. Web.
Buhrmaster, C L, Clark, D E, & Smartt, H B. Method for gas-metal arc deposition. United States.
Buhrmaster, C L, Clark, D E, and Smartt, H B. Tue . "Method for gas-metal arc deposition". United States.
@article{osti_7168047,
title = {Method for gas-metal arc deposition},
author = {Buhrmaster, C L and Clark, D E and Smartt, H B},
abstractNote = {Method and apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites are disclosed. 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. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {11}
}