What is Laser Cutting?

Laser Cutting: The Basics

In the simplest terms, lasers are beams of light. Of course, light doesn't have to be visible; our Trumph lasers are infrared, which makes the beam invisible to the naked eye. Our lasers have no trouble punching through thick steel, something that gives more traditional cutting methods trouble. But how does it work? What's the difference between laser cutting and other methods? Is the result the same? Here, we'll explain the basics of laser cut sheet metal fabrication.

As we said before, lasers are beams of high intensity light, all of exactly the same wavelength. Lasers can be used in a variety of subjects - from laser pointers and fiber optic systems to astronomy and military applications. In all of these, the basic principle is the same- stimulate the proper substance, and you get an output of light at a specific wavelength or color.  Here's an excellent explanation of how lasers work.

The Benefits of Laser Cutting

One of the useful things about lasers, as opposed to other cutting methods, is that they can be very finely focused. This means that they can only cut what needs to be cut- something which is a problem for plasma cutters, which tend to cut larger holes than is absolutely necessary. They also can be readily shut on and off, which is a problem for typical saws - you can't stop the cut until it's complete, or else you risk damaging your blade and the part you're cutting. Both plasma cutting and sawing also require post processing to remove burrs and other defects in the cut; with a laser, post-processing is nonexistent. 

Another useful aspect of laser cutting is the ability to cut quickly. Our 6 KW laser is capable of very high speeds without sacrificing precision.