Laser Engraving And Laser Marking Similar Or Different Processes?

By Author: Signvec Technology Pte Ltd
Total Articles: 53
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Laser etching, marking, and engraving are the most versatile modern inventions that are used in almost every industrial sector. While the difference between the laser engraving and laser marking and laser etching is quite evident, the terms laser marking and engraving are confused at times. Laser marking, is a method that leaves markings on a surface material of an object, including colour change, owing to chemical alteration.

Laser engraving is the method that is carried out by inscribing on an object surface. Laser engraving does not involve any inks or dyes, so it gains an advantage over the laser marking, wherein the replacement of tool bits like the ink heads need not be done. Laser marking has its own pros like the preservation of surface without any impact on it, since it uses colours and dyes to mark on the material surface thorough the laser techniques. Laser-sensitive polymers, metal alloys play an important role in this method. The method in general is a generic term that encompasses a variety of surfacing marking techniques like printing, hot-branding, laser attachment and so on.

On the other hand ...
... Laser engraving selectively removes minute layers of the surface material creating visibly conspicuous marks which are permanent. Different material surfaces respond to the laser in different ways. Harder surfaces primarily are responsive to ablation where the laser beam dislodges the minute particles from the surface. Engraving can create deep incisions, whereas laser marking is usually much shallower comparatively. Very short bursts of precise laser pulses or beams are done to get a clear marking, as transmit large quantity of power even without high degree of heating or melting the material surface.

Laser engraving is a part or a subsection of laser marking but however since it differs in quite a few ways it is separated from the laser marking. Mainly there are three types or categories in laser engraving, Laser ablation, deep laser engraving and laser etching. The difference in these three is the amount or the depth of engraving that is carried out depending on the requirement and the nature of the material surface. Laser ablation is the quickest way to mark on a material surface. This method is most suitable for engraving on parts that are subjected to high wear, marking serial numbers; logos, engine and chassis number engraving and so on. In laser etching, engraving is carried by the heat caused by the beam on to the surface of the material.

Nevertheless machines that are used for laser engraving and laser marking are almost similar, by virtue of the technology. But in a lot of cases these terms are confused due to the lack of awareness. Organizations like Signvec are pioneers in supply and service of laser marking machine and laser engraving machines. Located in Singapore the company has carved out a solid place for itself in the mentioned sector and has been maintaining a solid clientele, with reputed names included in it.

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Signvec Technology was established in 1997 and has to-date made a name for ourselves in the engraving and signage industry. We specialised in laser and rotary engraving, cutting and marking machines.