Metal Fabricating Glossary

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square wave



  1. A simple square wave follows a pattern similar to that of a sine wave, a series of alternating high and low voltages. The difference is that a sine wave’s magnitude changes continuously, whereas a square wave’s magnitude switches instantaneously between its maximum voltage and zero volts. A square wave is useful for many welding applications.

External Resources

Riding the right wave in aluminum welding

If you have any comments or questions about the glossary, please contact Dan Davis, editor-in-chief of The FABRICATOR.