True or False: Amperage is set by the wire feed speed in MIG welding.

In MIG welding, the wire feed speed significantly influences the amperage. As the wire feed speed increases, more filler material is fed into the weld pool, directly increasing the amperage required to maintain a stable arc and achieve proper fusion. Conversely, if the wire feed speed is decreased, the amperage will also decrease. This relationship is crucial as it affects the heat input and overall weld quality.

While other factors, such as material type and thickness, can impact welding parameters, the fundamental link between wire feed speed and amperage remains consistent. Adjusting wire feed speed effectively sets the requisite amperage for the process, making this statement accurate.