The practice of using lasers to engrave, or etch, a mark into an object is known as laser engraving.
The laser is commonly shaped like a writing apparatus, and the beam emits from the point of it, allowing the controller to trace patterns, while engraving them onto another surface. The controller is most often a computer, but sometimes is a human. The controller controls the direction, intensity, speed of movement, and spread of the laser beam aimed at the surface. The surface is where the piece to be engrave lays, and is picked to match what the laser can act on.
Different patterns can be involved in laser engraving by programming the controller to move different ways. The controller carefully regulates the laser beam to achieve the final result of the consistent removal depth of the engraved lines. For example, criss cross paths are often avoided during laser engraving to prevent any area from being exposed to the laser more than once, to keep engraving depths consistent. The speed in which the laser beam moves across the material is also considered in creating laser engraving patterns. The speed of the laser beam during laser engraving is also programmed into the controller during laser engraving.
A laser engraving machine is often used for laser engraving, and has three main parts:
Laser engraving has some clear advantages over conventional engraving methods. Laser engraving can be done at higher speeds, with more detail and precision, and provide much cleaner cuts in most materials. However, laser engraving can be more expensive, and there is a smaller range of materials available that are suitable for laser engraving. But as laser technology continues to improve, these limitations will likely be overcome.
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