4 Types Of Laser Engraving Machines

By Author: steven glassner
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Laser machines today have become an integral part of the everyday life of fabricators. Understanding its basics, difference, and use is essential. Let's discuss types of laser machines and its importance.

1. Fiber Laser:

Fiber laser marking technology is growing in recent times. It is one of the most useful marking technologies in the laser engraving market. Its power level ranges from 20 to 50 watts.

They are a perfect solution for depth etching or engraving. Additionally, they provide perfect results even on hard metals or high power systems with small spots.

High beam quality and small spot size with large lenses, allows fiber lasers for small batch marking applications. Make sure to use the correct laser parts like Amada parts or fanuc parts online as they play vital roles.

Applications:

Color marking:

It creates various shades of colors on a material with speed, power, frequency, and pulse width. The best result on color marking happens on stainless steel and aluminum.

Another form of color marking ...
... is removing color. Here, you can mark and remove color on coated materials to reveal an underlying material of a different color. This technology is useful for fittings, labels, and packaging materials.

Annealing:

It hardens the metal surfaces using a laser which enables production of various types of colors known as color laser marking. In this process we can achieve different colors like green, red, and yellow.

Foaming:

Here, the targeted area on the material is lighter than the rest of the part of the material.

Carbonizing:

Carbonizing destroys the carbon bonds which are useful to create shades of dark marked areas. It happens without affecting the surface of material. It is useful for light plastics and organic materials.

Night and day marking:

Fiber laser technology is useful to deliver marks that are easy to see in day time and illuminate by night. This can be useful for dashboards, reflectors, number plates, watches health and safety, and door signs.

2. Green Laser:

Green laser marking machines designing is useful to mark reflective materials. They work on very sensitive substances like silicon wafers. It exhibits good work with ease and high precision. It operates in the green near IR visible light spectrum and power range of 5-10 watts.

They are best suitable for soft plastics, PCB boards, integrated circuit chips and for marking of solar cells of various materials.

The advantages of 532 nm wavelength includes great intake across many types of materials. It uses mitigated thermal energy which allows it to mark substances which have high wavelength. Green laser markers also provide very tight spot sizes of 10 µm.

3. UV Laser:

Ultraviolet represents a band of electromagnetic spectrum with wavelengths from 10 nm to 400 nm. They are shorter than those of visible light but longer than x-rays. Long wavelength UV is bad at ionizing radiation, because photons do not have the energy to ionize atoms.

But, they can cause chemical reactions that make substances glow or fluoresce.

As a result, the chemical and biological effects of UV are wider than simple heating. Most applications of UV radiation happen because of its interactions with organic molecules.

Gas lasers, solid state lasers, and diodes are useful to make machines which emit ultraviolet rays. The lasers are available which cover the entire UV range. Since the discovery of the laser machine, it is possible to avail intense ultraviolet light.

Researchers explored the unique properties of this new light and optimized practical applications.

4. CO2 Laser:

CO2 laser marking machines usually have sealed tube laser marking systems. They are galvo-steered beams for marking nonmetal surfaces like wood glass, quartz, and ceramics.

They can also mark fabrics and other organic materials, operating at wavelengths of 10,600nm.

These machines are useful to produce barcodes, serial numbers, and logos on metals and other surfaces. When laser marking bare metal uses CO2 laser, it uses a special marking agent and is useful to treat the metal before engraving.

Once the laser beam applies the heat from laser bonds the marking agent to the metal, resulting in a high contrast permanent mark.

These machines are fast, affordable, oldest types of engravers, markers. They even mark organic materials like wood, ceramics, and many more. Additionally, you can use CO2 laser machines for Windows and Linux.

Pro tip: Try to use laser engraving machines which have amada parts or fanuc parts online as they are easy to replace.

Steve M Glassner is the General Manager of Alternative Parts Inc, the leading manufacturer and distributor of Amada machinery replacement parts. Steve is a Machine Tools industry enthusiast and frequently writes about various aspects of the industry.