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Title: Gas-tungsten arc welding of aluminum alloys

Abstract

The present invention is directed to 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 profice a mirror finish thereon having a surface roughness in the order of about one microinch. The fay surface are aligned and heated sufficiently by the tungsten electrode to fuse the aluminum alloy continguous 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:
Issue Date:
OSTI Identifier:
6499918
Application Number:
ON: DE83006878
Assignee:
EDB-83-050548
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; GAS TUNGSTEN-ARC WELDING; SURFACE FINISHING; WELDED JOINTS; ALLOYS; ARC WELDING; FABRICATION; JOINING; JOINTS; WELDING; 360101* - Metals & Alloys- Preparation & Fabrication

Citation Formats

Frye, L D. Gas-tungsten arc welding of aluminum alloys. United States: N. p., 1982. Web.
Frye, L D. Gas-tungsten arc welding of aluminum alloys. United States.
Frye, L D. Thu . "Gas-tungsten arc welding of aluminum alloys". United States.
@article{osti_6499918,
title = {Gas-tungsten arc welding of aluminum alloys},
author = {Frye, L D},
abstractNote = {The present invention is directed to 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 profice a mirror finish thereon having a surface roughness in the order of about one microinch. The fay surface are aligned and heated sufficiently by the tungsten electrode to fuse the aluminum alloy continguous 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 = {1982},
month = {3}
}