Laser engraving is a modern process used in imprinting or marking objects. Some laser techniques are very complex, while other new developments are much simpler. A laser or group of lasers is used to created extremely precise and clean engravings. This is done at a high rate of speed also. There are no tool bits, all the engraving is done by the hot laser beam. Hence, there are no parts to wear out.

Certain materials are better suited to laser engraving, such as hardwoods rather than softwoods. Special materials such as polymer and some new metal alloys are popular for laser engraving use. Precautions to protect against excess heat and flaming must be used with some materials.

There are three different methods for laser engraving. The most common uses an X-Y table. The laser moves in X and Y directions over a stable surface. Or, the laser is stable and the workpiece moves around. In a second method, a cylinder is used. The third method involves galvo mirrors that move a beam from a stationary laser over a stationary surface.

The focal point of the laser is extremely small, allowing pinpoint engraving and clean cuts. There is heat involved, which can cause some problems with some flammable materials, and may require special fans for cooling the surface after engraving, or vacuums to draw off the heat.

Laser engraving offers excellent results for wood, plastic, metal, stone and glass surfaces. It is a fast process, driven by computer systems, and can be used for many applications. There are many size systems in use. The small laser units can be used for engraving even the smallest items such as the inside of a ring.