Physical stress effects on aluminum magnet wire

Rapid growth of aluminum in numerous applications has necessitated specialized development of processing techniques by unit manufacturers. Primarily the aluminum magnet wire user has been faced with the task of processing a conductor whose behavioral pattern in relationship to induced stress does not always parallel their past experience. New parameters have had to be set in order to wind, place and form an inherently soft material. Established concepts in winding practices have been altered or modified on a somewhat random basis. In order to provide the magnet wire user with significant data, relative to the ability of aluminum, to tolerate winding stresses, a program was developed to determine critical processing factors. The program undertaken considered specific hardnesses of aluminum conductors to determine whether or not one hardness range would be more suitable for winding than another hardness range.