Various Aspects of Laser Etching Machines for Metal Surfaces

Laser engraving and etching technology is nothing but discoloring the surface of a product with a concentrated beam of laser light. Laser beam does not offer any light on its own but it can discolor the area where it is applied. By changing the color of the area where the laser beam is applied this technology works. Laser engraving and etching is more perfect than all other etching and engraving technologies. Besides precision these technologies are also preferred for marking hard material surfaces like that of metal ensuring highest durability. Lastly, most laser etching machines for metal in spite of being a  little pricey actually saves a good amount of cost just because these machines hardly require any maintenance whereas offer the best etching impression.

What is laser etching?

Laser etching is basically a subset of laser engraving. Laser etching is done by making the laser beam melt the material surface. Laser etching (www.wisegeek.com/what-is-laser-etching.htm) works in the following ways.

•  It basically works through melting the metal surface by high heat of laser beam.

•  The melted material expands and causes a raised mark.

•  Compared to engraving etching offers much less depth in marking.

On a broader scale laser marking technology can be classified into two distinct types, namely, laser engraving and laser etching. For marking any type of surfaces with precise and durable impression at a great cost this marking technology is preferred over others. Laser engraving and etching is the quickest and performance driven ways to mark diverse surfaces including glass, wood, metal and plastic surfaces. From marking industrial products to etching jewelry items or etching decorative items, this type of etching and engraving is widely used for different marking objectives.  Particularly for metal surfaces laser etching and engraving is widely used across industries and manufacturing environments.

Benefits of laser etching machine

As laser etching and engraving offers highest precision and versatile marking on an array of surfaces including metal it is considered as the most advanced marking method that suits all types of purposes. Laser etching is particularly useful in marking extremely small areas and the method can be utilized for repetitive marking on a lot of items and on a large scale.

Actually laser etching process which is the most advanced method for offering precise and most durable impression on an extremely small surface offers some cot advantages as well. First of all, laser etching machines in spite of their higher initial cost can actually be cost saving in the long run. As these machines require least maintenance and recurring cost, they can be considered best value for money option as far as any marking and engraving task is considered.

Laser engraving versus laser etching

Laser etching involves less complexity compared to laser engraving. A majority of laser etching machines are powered by computer and controller software for optimum control and output in the process of etching. On the other hand, engraving demands more of personal skills and the output can vary depending upon that. While the engraving process is mainly limited to line oriented design, laser etching machine is capable to print graphics with great clarity.

Typically in laser etching, it does not require to hold the material being etched and so there is almost no risk of damaging the product in the process. Though laser engraving also undergoes a similar process they can often discolor the surface in greater degree or can be responsible to create more depth.

Laser etching machines being capable to leave color during the etching process, can actually add more design elements. Furthermore, while engraving machines are mainly limited to surfaces like metal, glass, wood and some special material, laser etching can handle wide array of materials for diverse purposes of creating marks on them.

Some of the key differences between laser etching and laser engraving are mentioned below:

•  Laser etching is capable to transform the finish at the metal surface and naturally one can expect much better reflectivity and contrast through it.

•  Unlike engraving laser etching removes very little or nothing from the product surface.

•  Laser etching can offer precise and durable marking impression on a variety of surfaces including metal, polymers and ceramics.

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