Laser engravers are a little bit different than traditional engraving machines. With the laser engraving machine, no actual piece of mechanics (tools, bits, and so on) ever comes into contact with the surface that is being engraved. The laser itself does the engraving and there is no need to constantly be replacing engraving tips like with the other machines.
The laser beam is directed at the surface of the material which is to be engraved and it traces patterns onto the surface. This is all controlled through the computer system. The center (focal) point of the laser actually is very hot and can either vaporize the material or causes what is called the glass effect. The glass effect is where the surface actually just cracks and the material can be removed, revealing the engraving that has been done. There is no cutting process with the laser engraving machine.
The laser engraving machine usually works around the X and Y axis. The machine may me the mobile unit while the surface stays still. The surface may move while the laser stays still. Both the surface and the laser can move. No matter what way the machine is configured to work, the affects will always be the same.
Laser engravers can be used for many different things. Stamping is one of them. Stamping is used in several industries to mark their products either through numbers or expiration. It is a considerably fast process and is an easy way for the company to achieve this.