Welding Alcoa Aluminmum Author:Aluminum Company of America Welding Alcoa Aluminum — Author: Aluminum Company of America — Sound, reliable welds have been made in aluminum alloys for many years. Welded joints are strong. Decades of service under widely different conditions can be cited to demonstrate their high quality. ...examples of welded alumium are everywhere. Resistance welding is a useful assembly m... more »ethod in aircraft manufacture--and in many other fields.« less