Gas-tungsten arc welding of aluminum alloys
Abstract
A gas-tungsten arc welding method for joining together structures formed of aluminum alloy with these structures disposed contiguously to a heat-damagable substrate of a metal dissimilar to the aluminum alloy. The method of the present invention is practiced by diamond machining the fay surfaces of the aluminum alloy structures to provide a mirror finish thereon having a surface roughness in the order of about one microinch. The fay surfaces are aligned and heated sufficiently by the tungsten electrode to fuse the aluminum alloy contiguous to the fay surfaces to effect the weld joint. The heat input used to provide an oxide-free weld is significantly less than that required if the fay surfaces were prepared by using conventional chemical and mechanical practices.
- Inventors:
-
- Kingston, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 865261
- Patent Number(s):
- 4484060
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
- DOE Contract Number:
- W-7405-ENG-26
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- gas-tungsten; welding; aluminum; alloys; method; joining; structures; formed; alloy; disposed; contiguously; heat-damagable; substrate; metal; dissimilar; practiced; diamond; machining; fay; surfaces; provide; mirror; finish; thereon; surface; roughness; microinch; aligned; heated; sufficiently; tungsten; electrode; fuse; contiguous; effect; weld; joint; heat; input; oxide-free; significantly; required; prepared; conventional; chemical; mechanical; practices; weld joint; structures formed; tungsten electrode; aluminum alloy; surface roughness; aluminum alloys; heat input; heated sufficiently; conventional chemical; diamond machining; /219/
Citation Formats
Frye, Lowell D. Gas-tungsten arc welding of aluminum alloys. United States: N. p., 1984.
Web.
Frye, Lowell D. Gas-tungsten arc welding of aluminum alloys. United States.
Frye, Lowell D. Sun .
"Gas-tungsten arc welding of aluminum alloys". United States. https://www.osti.gov/servlets/purl/865261.
@article{osti_865261,
title = {Gas-tungsten arc welding of aluminum alloys},
author = {Frye, Lowell D},
abstractNote = {A gas-tungsten arc welding method for joining together structures formed of aluminum alloy with these structures disposed contiguously to a heat-damagable substrate of a metal dissimilar to the aluminum alloy. The method of the present invention is practiced by diamond machining the fay surfaces of the aluminum alloy structures to provide a mirror finish thereon having a surface roughness in the order of about one microinch. The fay surfaces are aligned and heated sufficiently by the tungsten electrode to fuse the aluminum alloy contiguous to the fay surfaces to effect the weld joint. The heat input used to provide an oxide-free weld is significantly less than that required if the fay surfaces were prepared by using conventional chemical and mechanical practices.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1984},
month = {Sun Jan 01 00:00:00 EST 1984}
}