1) Firearm terminology 
[firearms] Flame cutting is a destructive phenomenon that occurs in some firearms (usually revolvers) as a result of hot gases under high pressure. The most common manifestation is on the underside of a revolver top strap, where the hot, high-velocity gases released when a round is fired begin to cut through just above and in front of the c...
Oxygen cutting in which the appropriate part of the material to be cut is raised to ignition temperature by an oxy-fuel gas flame.
A process used to cut carbon steel plate using an oxy-fuel gas flame.