Plasma cutting is a thermal fusion cutting process that is frequently used to cut steel, stainless steel and aluminum. The main disadvantage of plasma cutting in comparison to a laser cutter is the cutting quality, higher energy consumption, increased dust creation and noise emissions. Although you will find that when cutting any electrically conductive material, plasma cutting is often preferred due to its flexibility.
Compared to mechanical chip removal cutting processes, however, a laser also often has its advantages. The non-contact processing, reduced setup costs, lower contamination and flexibility for processing are just a few of those. Depending on the material and application, every processing method naturally has its advantages, for instance, when cutting multiple samples in a stack at the same time.