Laser Marking technology is all the more generally used in the printing field lately and laser marking can be applied to a few materials, for example, plastic and elastic, metal and silicon chips. In contrast with conventional mechanical etching, substance consumption, network printing, and oil ink printing, laser marking is portrayed by the minimal expense and high adaptability and can be constrained by a computer system. The imprint created on the workpiece surface by laser is permanent.
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Factors To Consider While Laser Marking The Metals.
Laser marking is a non-contact method for all-time marking metals, where the profundity of the cut can be controlled and, surprisingly, mechanized. Laser marking is advantageous in that it is viable with practically any vector programming, similar to CAD or Illustrator, for marking patterns. Similarly, as with all machining strategies, there are a few significant elements to be thought about while laser marking . Moving along, the following are 5 interesting points while laser marking
Material Properties
With all laser marking applications, it is essential to consider what material is being stamped. Materials have different assimilation spectra meaning they respond diversely to various frequencies. This should be remembered while choosing what material to use with what laser source. The liquefying point and the material’s reaction to warm must likewise be thought of. The hardness of the material ought to likewise be thought about. For example, laser marking aluminum will take less time than laser marking steel since it is a lot gentler metal with a lower softening temperature.
Type of The Laser
Both CW lasers and beat lasers can be utilized while laser marking . Be that as it may, beat fiber lasers are utilized all the more oftentimes since they can convey a higher force bar without overheating the example. Normal kinds of lasers utilized for laser marking incorporate “carbon dioxide, ytterbium-doped fiber, UV, and green and neodymium vanadate lasers”.
CO2 lasers are less utilized for metal and something else for woods, glasses, and plastics. Green lasers, once more, are less utilized for metals and the sky is the limit from there so for plastics and glasses. Fiber lasers are regularly utilized for marking , and are reasonable for a wide assortment of them, going from steel to copper. Lasers of >50W power are for the most part suggested for marking . Fiber lasers can be intended to have higher pillar quality than lasers of comparative normal result power. This shaft quality controls the pillar’s spot size, and subsequently the width or the artfulness of the laser marking.
The Choice of Laser Marking Method
There are numerous methods for laser marking metals that produce different sorts of imprints. The sturdiness and time thought for every method are only some of what should be weighed while concluding which strategy is generally attractive for a particular application. A portion of these methods are are written below:
- Laser Engraving
- Laser Etching
- Laser Annealing
- Laser Ablation
Working Environment
Similarly, as with any machining activity, it is crucial to guarantee legitimate wind current and ventilation/filtration frameworks are being used. Lasers create intensity, and laser marking metals can deliver fumes and particles. This makes having a protected workplace of the most extreme significance.
Cost
One of the decisions to be made is deciding whether it’s a good idea to buy a laser marking setup or to simply have the services performed by another party and if one is a preferred venture over the other. This could be reliant upon the number of items that require marking or potentially the frequency of the use of the laser marking setup. The material expense and time to finish each laser marking should also be considered.
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