Laser cutting, also known as metal engraving, is a process in which the light produced by lasers is engraved onto metal objects. Laser cutting is also known as this kind of laser engraving. Laser cutting machines usually comprise an energy source for the laser, a LED, an ionization chamber, an application device as well as a laser energy detection (LED). In this instance, the cutting head for lasers is not part of the machine but is an individual unit which is integrated into the machine. This type of laser cutting or engraving machine can be classified into different kinds.
The most popular type is the CNC laser cutting head, which is commonly used for small-scale precision engravings. The mixing laser machine comes with many distinct advantages over the standard CO2 laser cutting head-it is capable of cutting both non-metal and metal materials (wood brass, wood, MDF, etc.). It also has an automated focusing system that can precisely track the exact position of the focal point within the material to effectively cut it. This model comes with an accessory called the “engraver wheel” which allows you to rotate the workpiece while the laser beam is working.
The other major type is the CNC laser cutting head movements, which are usually employed in larger projects. This type of cutting head for lasers can be moved in either the rotary or linear mode dependent on the task. The rotary mode is when the cutting head moves across the work piece as it cuts, while linear mode moves the material in one direction at a time.
Continuous Laser Engraving (CEL) is a technique used when the process requires precision. In this case, the laser beam creates lines on the material being engraving. This method is more accurate than other methods as it doesn’t require any moving components or gears. CEL laser engraving projects the laser beam continuously across the workpiece. The line width is set to a depth that is equal to the thickness of the workpiece. With the help of a computer program, the angle and position of the laser beam can be electronically controlled, which enables the workpiece to move precisely and securely without the necessity of manual effort.
Another crucial aspect to take into consideration when buying the laser engraving machine is the focal length of the machine. Lenses determine the depth of the laser pattern that is projected onto the workpiece. A longer lens focal length produces finer detail on the engraved metal and prevents the engraving from blurring.
Mixed laser cutting machine ( MLB) is a combination of a highly-powerful co2 laser tube as well as a fiber optic feed. The co2 laser tube with high power can create stronger and more intense light than the typical fiber optic tube which in turn permits a more precise path for cutting. Fiber optic feed permits two-way and synchronous laser communication between co2 laser tube (and the computerized CNC machine). The intricate patterns created by the co2 laser tube are more precise than those produced by a traditional CNC machine. Some companies combine a standard CNC machine with an MLT (medium laser cutting) system, in order to produce finer pieces of metal. Manufacturers can also combine the standard CNC machine and a high-power CO2 laser tube with an optical feed. Know more about Laser CNC Engraving and Marking here.
Fiber Optics and a high-power CO2 Laser Tube. The combination of these two technologies allows for a high quality of cut-depth and output , and the accuracy of the finished piece is close to that of a conventional CNC machine. The major difference between the CNC machine and a MLT is that the latter produces focused beams, meaning that they only work in a single direction. Because of their focussed output that is why the high-power fiber optic output of CNC machines is not required, and therefore it does not necessary rely on a correlated laser focus. In a CNC machine, the output of the laser beam directly controls the movements of a drill , which allows the system be more precisely controlled; however, due to the previously mentioned dependence on a correlated laser beam, the precision of the cut is based upon the output power of the laser itself, and not upon the fiber optic feed.
A mixed mode focussing cutter. A MLT is paired with a fiber optic high-power output and a CNC laser in order to create a two-way laser communication that is synchronized between the system and the CNC machine. This allows CNC machines to simultaneously program laser lengths and cutting depths and feed rates. Since these processes are dependent upon one another, and due to the complex communication between machine and CNC cutter, this combo is often referred to as a “quadrate” or “fiber laser auger.”