What You Need to Know About a Desktop Fibre Laser
A desktop fibre laser is a solid state laser used for marking and engraving. Its components include a laser generator, a lens and galvanometers. It accepts a design from a computer-controlled system and marks the desired material at high speed.
Among lasers, the desktop fiber marking machine can mark a wide range of materials. Its main drawback is its inability to engrave wood.
Optical Power
Optical power is the amount of optical energy present in a light signal. It is a crucial parameter in many different applications, including fiber optic communications and laser technology. It can be measured using specialized instruments or calculated with the help of a specific formula.
Often, optical power is expressed in decibels referenced to a milliwatt (dBm). This logarithmic scale makes it easier to compare different signals. Typically, a value of 0 dBm corresponds to 1 milliwatt and values above this indicate increasing levels of power.
One important factor when calculating desktop fibre laser optical power is pulse duration, also known as pulse width. A shorter pulse can concentrate more energy in a smaller time period, allowing for higher peak powers. The pulse repetition rate, or the number of pulses per second, is also an important parameter to consider.
Another factor to consider is the materials you will be engraving. For example, PVC acrylics can create toxic fumes when they are heated by a laser. This is because the polyvinyl chloride in the material breaks down and releases hydrochloric acid, a toxic gas. This is why you should make sure your laser system has a reliable fume extraction system. Also, the power level of the laser should be kept low when engraving these materials, as this will minimize the risk of dechlorination.
Optical Stability
The stability of a desktop fibre laser marker is important for consistency in the marking process. A stable power supply helps achieve this, as does a well-built machine. The quality of the laser is also important, as are the optics used. This will determine the quality of the mark and the ease with which the marking can be carried out.
Desktop fiber laser markers are designed to handle a wide range of materials. They are often used to mark metals and other hard materials such as plastics, and can be used for etching or engraving. The machine is a great choice for businesses that need to mark a wide range of products. They are also easy to use, and have a small footprint.
Some models can even engrave PVC (polyvinyl chloride) material, although this is not recommended. The heat from the laser can cause the material to release hydrochloric acid, which is a toxic gas. This can also cause yellowing around the area that was lasered. In order to prevent this, it is best to use a PVC acrylic that does not contain chlorine, or use a fume extraction system.
OMTECH’s desktop fiber lasers have a number of advantages over other options, including their ability to mark a wide range of materials and their high-quality marks. They are also very reliable, with a MTBF of 100,000 hours. These machines are also easy to set up and use, as they are air-cooled rather than using a chiller. This makes them a cost-effective alternative to other types of lasers, such as YAG.
Moving Parts
A desktop fibre laser features a number of moving parts to power the machine. Servo motors are responsible for the minute movements of the optics in the laser head, and they’re made from high-grade components to ensure precision. This is what allows the machine to create complex designs with very little physical effort.
The servo motors also control the z-axis, allowing the laser to mark objects of different heights without having to adjust them manually. This saves time and makes the machines more efficient, especially for large projects.
Laser markers also have cameras built into the heads that can identify the shape of the object and adjust the focal point accordingly. This eliminates manual adjustment of the focus, reducing maintenance costs.
Fiber lasers are designed to be used with a variety of materials. Many are equipped with specialized nozzles that make them suitable for different kinds of metals. This flexibility makes them ideal for industrial applications.
KEYENCE’s MD-F series of laser marking machines have integrated safety measures to prevent harm, including key control and radiation emission warnings, as well as a shutter to enclose the laser. They’re also ISO 13849-1 compliant, meaning they provide redundant safety with a contactor that can stop the laser. In addition, they all feature a fan that cools the laser to avoid overheating and maintain its functionality.
Maintenance
A fiber laser machine needs regular maintenance to perform optimally. This will prevent costly repairs in the future and ensure accurate cutting portable fiber laser results. It’s important to follow the manufacturer’s guidelines for upkeep, and maintain a log of all maintenance tasks for efficient tracking.
Make sure the laser nozzle and lens are clean, using lint-free cloths or microfiber towels to wipe away any residue. Dust and debris can clog airflow and cling to the lens, reducing precision and making the laser too hot. It’s also essential to keep the work area clean, minimizing the accumulation of dust and tiny pieces. Organize cables and components to prevent accidental damage, and keep the area around the laser clear for access to maintenance and emergency stops.
Examine the gas path filters regularly and replace any that are clogged with debris. Look for any leaks in the hose and gas bottle, as these can reduce flow rate and impact marking quality.
Inspect the mechanical components of the machine, including the rails and bearings. Lubricate them as needed, and be sure to calibrate the machine to ensure precise cuts. This may require professional calibration, but it will reduce the frequency of costly repairs in the future. Investing in proper maintenance will help your desktop fibre laser last longer, saving you money over the long term.
