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Article: Welding aluminum alloys.(Welding/Maintenance)
- Article from:
- Plant Engineering
- Article date:
- October 1, 2003
- Author:
CopyrightCOPYRIGHT 2003 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The question often comes up "Isn't there one filler metal I can use for all my aluminum welding?" The answer, unfortunately, is no. However, there are basic rules for filler metal selection.
First, know which aluminum alloys will be welded (Fig. 1). If all you know is that you have aluminum, that is not enough information to choose a filler metal. Once the aluminum alloys are known, that you will be joining alloy A to alloy B, there are a number of good tables for selecting filler metals (see table).
[FIGURE 1 OMITTED]
Filler metal selection can be simplified somewhat. Almost all of the aluminum filler metals fall into either the ...