Quick Answer: What Is Flame Cutting Process?

Flame cutting is oxygen cutting in which the appropriate part of the material to be cut is raised to ignition temperature by an oxy-fuel gas flame (definition from BS 499:Part 1:1991 Section 7 No. 72 002). Also known as oxy-fuel cutting, the process is used for separating and shaping steel components.

What is the basic principle of flame cutting?

Flame cutting uses a neutral flame to heat the material up to its kindling temperature. When this is reached, the operator presses a lever that releases an additional high-flowing stream of oxygen to the flame. This is used to sever the material and blow away the molten metal, or dross.

What type of flame is used in cutting?

The neutral flame is the flame most generally used when welding or cutting.

What is gas cutting process?

Oxy-fuel cutting is a thermal cutting process that uses oxygen and fuel gas (such as acetylene, propane, MAPP, propylene and natural gas) to cut through materials. There are several fuel gas and nozzle design options that can significantly enhance performance in terms of cut quality and cutting speed.

What is flame cutting used for?

Flame cutting is oxygen cutting in which the appropriate part of the material to be cut is raised to ignition temperature by an oxy-fuel gas flame (definition from BS 499:Part 1:1991 Section 7 No. 72 002). Also known as oxy-fuel cutting, the process is used for separating and shaping steel components.

What is kerf and drag gas cutting?

Efficiency of Gas-Cutting: A uniform wide slot, called kerf, is cut by the high pressure stream of oxygen. The marking on the sides of the keft are called drag as shown in Fig. These drag lines indicates the quality and speed of travel. Drag lines are expressed as a percentage of the thickness of metal being cut.

What is flame in welding?

There are three basic flame types: neutral (balanced), excess acetylene (carburizing), and excess oxygen (oxidizing) as shown below. A neutral flame is named neutral since in most cases will have no chemical effect on the metal being welded. For this reason a carburizing flame is not used on metals that absorb carbon.

What flame is used for welding and cutting purposes?

Hydrogen gas readily burns in oxygen or air along with the formation of water. The flame produced is neutral and it increases temperature. The flame has a temperature of around 2800 degree Celsius.

What is an acetylene flame?

Acetylene (C₂H₂) It is one of the fuel gases used in oxy-fuel gas welding, which is any welding procedure that combines a fuel gas with oxygen to produce a flame. The heat and temperature produced by an acetylene flame depend upon the amount of oxygen used to burn it.

What is the difference between gas welding and gas cutting?

Oxy-fuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by application of heat created by gas flame. Oxy-fuel cutting uses acetylene and oxygen to preheat metal to red hot and then uses pure oxygen to burn away the preheated metal.

How many types of flames are there in welding?

There are three types of flames natural flame, carburizing flame and oxidizing flame. Natural flame has synchronized mixture of fuel and oxygen, carburizing flame has more fuel and oxidizing flame has more oxygen. Different material used different flames according to weld condition.

How thick can you flame cut?

What thickness material can be cut? The process can cut from sheet metal thicknesses to 100 inch material. Prior to 1958, when Plasma was introduced, all thicknesses were flame cut. Today metal thinner than 3/8-1/2 are typically only cut by plasma or laser, as thin materials are very challenging to flame cut.

What is the straightness of the cut called in flame cutting?

Cut quality refers to the straightness of the cut edge, while the size refers to the width of the cut.

What cutting process can cut any type of metals?

Almost all metals can be cut by plasma arc cutting but it is particularly suited to cutting aluminium and stainless steels. It can also be used for stack cutting, shape cutting, and plate beveling.