Ultrasonic Welding: What Is It, and How Is It Used?

When you think of welding, you might imagine a burly man lowering a huge, metal welding mask over his face, putting on thick gloves, and then sparking his welder so that he can melt two chunks of metal together. This works perfectly when it comes to joining metal pieces, but what if you need to join small plastic pieces together? You can’t exactly use a traditional welder for t...
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