AN INVESTIGATION OF INDUSTRIAL PRACTICES IN JOINING FOILS WITH EXPERIMENTAL INVESTIGATION IN PRESSURE WELDING FOIL ALUMINUM.
TEXAS UNIV AUSTIN DEFENSE RESEARCH LAB
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The report contains the results of a two-fold investigation on thin foil welding technology. Foil is used to denote metal sheet of 0.01-in. thickness and under. The purpose of the first part of this investigation is to review the research and development that has been performed by industry and various investigators in adapting welding techniques to the special requirements of foil gage welding. Welding techniques that have received the greatest attention and consequent development by investigators are the inert-gas-shielded arc welding process, the resistance welding process, and the relatively new ultrasonic welding process. Techniques, applications, and limitations of each of the processes are noted. To supplement the small amount of information available regarding the pressure welding of foils, the second part of this report is devoted to experimentation in cold and hot pressure welding of commercially pure aluminum foil of 0.0025-in. thickness. An analysis of test results is made to determine the interrelationship of pressure, time, and temperature for optimum welding conditions. Author
- Fabrication Metallurgy