PROCESS DESCRIPTION

With Oxyfuel Cutting, the surface of the component to be cut is heated to ignition temperature with a fuel gas/oxygen flame. When the material has reached ignition temperature, an oxygen jet is switched on and the material is set alight. This is the source of the term “flame cutting“.  As this continuous process is exothermic, no further energy is required to heat the entire sheet depth.  The heating flame only supplies the heat for heating the surface. In order for the direction to be changed during cutting, without rotating the cutting nozzle, the heating flame is arranged annularly around the cutting channel. A prerequisite for flame cutting is that the ignition temperature of the material be lower than its melting point.

ELME MESSER GAAS SOLUTION

Fuel gas and oxygen are used to generate the cutting flame. Oxygen is additionally used as cutting gas.  Messer supplies gases and know-how for your requirements.

Advantages

• Different fuel gases allow for different heating. We help you utilise the best gas for your application.
• Increase in economic efficiency
• Reduction in costs
• Higher cutting speeds

PROCESS DESCRIPTION

In laser beam cutting, the laser beam serves as the heating source. Laser beam cutting is sub-divided into 3 processes. In addition to flame cutting and fusion cutting there is the possibility of sublimation cutting where the material is directly transformed from solid to gaseous state.

The cutting gas is used either for combustion or to blow the material out of the joint.

ELME MESSER GAAS SOLUTION

Either oxygen (flame cutting) or nitrogen (fusion cutting, sublimation cutting) is used as cutting gas. Messer supplies gases and know-how for your requirements.

Advantages:

Using the right process and a suitable gas with the necessary qualities leads to corresponding results. We help select the right gas.

• Clean cutting edges
• Dimensional accuracy
• Economic efficiency

PROCESS DESCRIPTION

Plasma cutting can be sub-divided into flame and fusion cutting, and is suitable for non- and low-alloy steel, but especially for high-alloy steels and non-ferrous metals. An arc provides the energy to melt the material or heat it to ignition temperature. The liquid material or slag can then be combusted or squeezed out of the joint by the cutting gas. At low sheet thicknesses, plasma cutting is inferior to laser beam cutting with respect to cut quality, but with higher sheet thicknesses it is more economical. Especially high cut quality can be achieved with fine-beam plasma cutting.

ELME MESSER GAAS SOLUTION

A shielding gas layer surrounds the plasma beam and protects the cutting zone from the ambient air. The plasma gas surrounding the electrode is usually argon. Either oxygen (flame cutting) or nitrogen (fusion cutting) is used as cutting gas.   Messer supplies gases and know-how for your requirements.

Advantages:

• Using the right process and a gas with the necessary qualities leads to corresponding results.
• Clean cutting edges
• Dimensional accuracy
• Economic efficiency

PROCESS DESCRIPTION

In addition to the standard processes there are numerous process variations which cannot be described in detail here.

ELME MESSER GAAS SOLUTION

Messer provides gases for all welding and cutting applications as well as expert know-how in selecting processes.

These include:

• TIG spot welding
• TIG orbital welding
• Electron beam welding
• Hybrid welding
• Electro-gas welding
• Standard processes with modern electric arc control
• Gas pressure welding
• Plasma powder joint welding
• Separating with oxygen lances
• Powder flame cutting
• Flame stress relieving
• Etc.