With such countless alternatives on laser stamping frameworks accessible today it isn’t astonishing that numerous individuals get mistaken for which is the most appropriate to their application. Numerous individuals don’t realize that the expression “laser”, is really an abbreviation – Light enhancement by invigorated discharge of radiation – which clarifies the cycle by which a laser pillar is made.
The fundamental hypothesis of this is straightforward. An addition medium (the material that is utilized to make the laser light), is energized utilizing either light or electrical energy to produce photons (the laser light). The entirety of this is going on in a shut hole, with a totally intelligent mirror toward one side, and a semi intelligent one at the other. At the point when the light ricocheting around inside gains sufficient energy, it escapes through the semi-intelligent mirror.
These high energy photons are then engaged to a little spot (similar as you did at school when you utilized an amplifying glass to center the daylight to consume things!). On the off chance that it is a vector laser, this pillar is redirected and coordinated utilizing a couple of mirrors (X and Y diversion). This guide will assist you with understanding the abilities of the 3 most basic lasers accessible in the market today:
· A CO2 laser: the Carbon Dioxide gas fixed inside the laser (alongside some different gases – most generally nitrogen, and helium) is siphoned (energized/warmed up) utilizing electrical energy (DC, AC or RF) which makes the flood of photons.
· A Nd:YAG laser: the neodymium-doped yttrium aluminum garnet (Nd:Y3Al5O12) is siphoned utilizing a light or diode to radiate the flood of photons.
· A Fiber laser: a glass fiber doped with an uncommon earth particle – most commonlyytterbium (Yb3+) – is diode siphoned and the photons produced are reflected down the fiber towards the diverting mirrors.
What are the distinctions?
The fundamental contrasts between the nd:YAG/Fiber and CO2 Lasers is the frequency of the pillar that it produces. The light discharged from a laser sits inside the Invisible Light – Infrared district of the electromagnetic range.
The light of the YAG and fiber lasers are radiated at a frequency that is absolutely multiple times more modest (1.064 µm) than that of a CO2 laser(10.6 µm).
This more modest frequency additionally implies that if the Nd:YAG/Fiber and CO2 lasers were utilized in a similar application (with a similar set-up). The Nd:YAG/Fiber would have a lot more modest spot size and thusly, mark with a superior goal.
Why does this matter?
These frequencies figure out which laser ought to be utilized for every application, as the material to be stamped will have distinctive ingestion capacities (of the light at various frequencies). On the off chance that a material can assimilate the light, it tends to be influenced by it.
Which one would it be advisable for me to use for metal?
Most metals are profoundly intelligent and along these lines, a Nd:YAG or Fiber laser would be most suited.The frequency being a lot more limited methods there will be less impression of the bar on a superficial level, in this way less loss of energy and thusly simpler working of the metal. The metal ingests a greater amount of the light energy that changes its actual properties.
Which one would it be advisable for me to use for non – metal?
Natural materials like wood, acrylics, plastics, textures, and straightforward articles are more qualified to the CO2 as the frequency is longer and has more scope. Anyway the Nd:YAG and Fiber lasers can be utilized to stamp some non-metals as well. However, on the off chance that the item is straightforward (eg. glass) at that point the YAG/Fiber laser light will go through it without stamping it.
Laser markers can deliver alpha-numeric characters, standardized tags, chronic numbers, logo’s, fine art and other realistic pictures utilizing a non-contact warm cycle.
Is there a simple method of realizing which would be generally reasonable?
In a perfect world, an example of the material would need to be tried , however for the most part consider CO2 for Organic and YAG and its subsidiaries (Fiber, nd:YAG .. and so forth) for Non Organic materials. find out more nd: yag
Alright, I have chosen to go for either a nd:YAG or Fiber laser, what are the distinctions?
· The nd:YAG utilizes a light or a diode pack (cluster) to energize the addition medium – these require more electrical force and wear out (and are exorbitant to supplant). They, additionally produce a ton of warmth and require more warmth dissemination (some water cooled – most now use heat-sinks and thermo-electric cooling frameworks)
· The fiber lasers utilize many single producer diodes that are less expensive to run, and will last the lifetime of the fiber. The interim before disappointment is more prominent than 50,000hrs
· The fiber laser is more steady at all force levels.
· The light source with a fiber is totally fixed right to the stamping head. This stops residue and molecule tainting and empowers longer working distances between the control unit and checking head. It additionally diminishes any spillage and consequently builds the productivity of the laser pillar.
