Both plasma cutting and oxy-fuel cutting are metal cutting techniques. For welding-related activities such as metal fabrication, the two are often applicable.
Oxy cutting is the most popular method used in construction sites due to its portability. However, in terms of precision and time, plasma cutting proves more advantageous. In plasma cutting, no metal preheating is required before cutting – hence, time is saved.
Additionally, plasma cutting can be used to cut any electrically conductive metal, unlike the oxy-fuel process which cannot cut aluminum or stainless steel. In summary, plasma cutting is a less expensive, cleaner, and more efficient method of metal cutting.