IGOLDENCNC Metal Laser Cutting Service For Hobbyists China

What Is Metal laser cutting machine? Metal laser cutter is a type of CNC laser cutting machine for sheet metals, metal plates, metal profiles, metal tubes and metal pipes, which is the best metal cutting solution for metal fabricator. Metal laser cutters are available for 2D/3D metal cutting projects of stainless steel, galvanized steel, carbon steel, mild steel, cold rolled steel.

In the process of Metal laser cutting machineprocessing metal materials, the evaluation of the quality of the processing can be judged from the following points:

1. Smooth cutting surface, few lines, no brittle fracture

Because when the laser is cutting the plate at high temperature, the traces of the molten material will not appear in the cut below the vertical laser beam, but will be sprayed out at the rear of the laser beam. Such curved lines are formed on the cutting edge, and the lines closely follow the moving laser beam.

In order to correct this problem, reducing the feed rate at the end of the cutting process can greatly eliminate the formation of lines.

2. Narrow slit width

Generally speaking, the cutting width does not affect the cutting quality. The cutting width has an important effect only when a particularly precise contour is formed inside the part.

This is because the cutting width determines the minimum inner warp of the profile. When the thickness of the sheet increases, the cutting width also increases.

Therefore, in order to ensure the same high accuracy, no matter how large the width of the incision is, the processing area of the workpiece in the laser cutting machine should be constant.

3. The cutting seam has good verticality and small heat-affected area

When the thickness of the processed material exceeds 18mm, the verticality of the cutting edge is very important;

When away from the focus, the laser beam becomes divergent, and the cut becomes wider toward the top or bottom depending on the position of the focus.

The cutting edge deviates from the vertical line by a few hundredths of a millimeter. The more vertical the edge, the higher the cutting quality.

4. Thermal influence of cutting material

As a thermal cutting processing application equipment, a metal laser cutting machine is bound to cause thermal effects on metal materials during use. Its manifestations mainly include three aspects:

1) Heat affected zone:

The heat-affected zone refers to the area around the incision being heated during laser cutting. At the same time, the structure of the material itself changes. For example, some materials will harden. The heat-affected zone refers to the regional change in which the internal structure changes due to high temperature.

2) Depression and corrosion:

Concavity and corrosion have an adverse effect on the surface of the cutting edge and affect the appearance of the laser cutting machine. They appear in cutting errors that should generally be avoided; in the end, if the cutting causes the part to heat up sharply, it will deform.

3) Material deformation.

This is particularly important in fine machining, because the contours and connecting pieces here are usually only a few tenths of a millimeter wide. Controlling the laser power and using short laser pulses can reduce parts heating and avoid deformation.

Functionality of a Laser Cutter

Most laser cutting systems are operated by Computer Numerical Control (CNC) parameters. These computer controls enable high levels of precision and increased cutting speed. Once images or designs are programmed into the laser cutter, designs, shapes, and sizes can be altered, adjusted and tweaked with the punch of a button. The laser performs fast cutting actions with high accuracy, and a feature of CNC programming is regulating power output, meaning less energy while cutting is used. This enables the laser to adjust settings automatically during cutting depending on the thickness of the metal. Because of CNC programming, no tooling changes are necessary to make adjustments to the cut.

Advantages of Laser Cutting Process

Metal laser cutting machine is quick in comparison to other traditional cutting techniques as most of the work is automated.

Holding the piece of metal is easier in laser cutting than in mechanical cutting.

The cuts obtained by laser are more precise than can be done by any other method of cutting metals. It’s for the very reason laser cutting is preferred in industries that require absolute exact size of metals as an outcome.

In the laser process, the metal doesn’t come in direct contact with other metals to facilitate the cut. Hence the metal is more finely cut without any contaminations.

In traditional processes where heat becomes the weapon to cut metals, the edge of the metal usually deforms to some extent but laser cutting gives you a fine edge metal cutting.

The versatility of the process lets you engrave delicate designs on different metals.

Laser cutting process requires less energy for cutting the metals than other traditional methods.