Laser engraving is a process that involves the use of a laser beam to create depth which brings about a change to the surface of an object. This is done by the high heat created by the lasers which vaporize the matter thereby creating cavities that eventually form the final image.
How Does a Laser Engraver Work?
Laser engraving works similarly like laser cutting and it involves a beam of light which reflects through a series of mirrors, these mirrors points the beam down through a focus lens that concentrates the heat at an exact point. This is where the heat is most intense and it is called the focal point. The cavity that is left by the engraving process is usually very visible and can be felt when touched. The depth of the cavity varies from 0.02 inches to 0.125 inches depending on the material it is used on. Laser engraving works with a wide variety of materials such as metal, plastics, wood, glass, leather, acrylic plastics and so on. It is also good for adding numbers, images, logos and serial numbers to items.
What Can Laser Engraving Do For You?
Laser engraving technology is becoming more popular owing to its divergent application which ranges from personalized materials such as jewelry, wine glasses, wallets, etc. and customized promotional items for companies such as key holders, pens, signs, and displays. Below are some of its other applications:
Organic materials like wood, hard papers, finished leathers, and latex rubber can be laser engraved. When engraving on wood, the laser power is often less than 10 w and hardwoods like maple produce, walnut, and mahogany usually produce excellent results but softwoods tend to vaporize at less consistent depths.
The light absorption spectrum of different plastic cast varies; this is because additives are usually used in the making of most plastics which is why they are rarely seen in their pure state. These additives usually affect the result from laser engraving but acrylic plastics generally gives a good result when laser engraved.
Metals are heat resistant and so high-density laser power is required in order to engrave on these materials. The lasers used in this case are those with shorter wavelength like the fiber and crystal lasers.
Glass and sand do not easily turn to the gaseous state which makes them best suited for other forms of engraving such as cutting using diamonds and sandblasting. When engraving on glass, special attention needs to paid to laser power, focus, and speed as these are major determining factors that result in delivering good results. More details.
With laser engraving, it is now possible for jewelers to carry out their tasks with a greater precision. Today, there are more specialized laser engraving machines that have incredible capabilities such as the ability to engrave the inside of a ring as well as the back of a wristwatch. This is the reason why more jewelers now prefer to use laser engraving machines to carry out their tasks.
Laser engravers are incredibly cool technology that has a wide range of application, what used to be the exclusives of the manufacturing sectors has now been embraced by small businesses and deep-pocketed enthusiasts.