While this welder can pack a punch, it's probably most useful for at-home DIY projects and smaller-scale tasks, such as ...

A maintenance technician arrives with a handheld laser welder, plugs into a standard power outlet, dials in a preset for thin stainless, and lays down a clean fish-scale bead in under twenty minutes.

The last two decades have seen substantial improvements in ultrasonic plastic-welding machines. Bench-top models feature proportional-valve controls, linear encoders, line-voltage regulation, internal ...