An Overview of Ultrasonic Welding

Ultrasonic welding (USW) uses high-frequency sounds that are generally not heard by humans but instead perceived as vibrations. These high-frequency sounds cause rapid vibrations within the materials to be welded. The vibrations cause the materials to rub against each other which creates friction. The friction in turn creates the heat needed at the contact area…

Different Types of Welding Metals

Archaeologists have discovered evidence that welding existed at least as far back as 3300 B.C. during the Bronze Age. Small golden boxes from that era were uncovered in Egypt with the handles apparently welded on. It is thought that the welding process consisted of heating two pieces of metal and hammering them together. Fast-forward to…

A Summary of Cold Welding

Cold welding is not a new concept. Archaeologists have discovered tools dating back to the Bronze Age that were joined using cold welding. In the 1940s, the process took hold for use in modern times. Although the process is not for all types of metal, it certainly has its place in the current world of…