Laser cutting is a process that increases the efficiency and precision of metal fabrication. It is commonly used in various industries, including furniture, bicycle, sign, and computer and medical device fabrication. However, a small percentage of metal shops can use this cutting method.
High-powered lasers
High-powered lasers can effectively cut brass with minimal damage to the material. However, they should be used with care because the metal is highly reflective and high in density. The laser must be set up to work with the proper parameters to avoid any risks of stray laser radiation. It should also be used in the proper sequence to minimize the heat-affected zone and avoid overheating the metal. You can use free and paid software to create a design, convert it to a CAD file, and set up the laser parameters.
The laser’s power and the material’s thickness determine the maximum thickness of the Laser cut brass. Generally, a 4,000-watt laser can penetrate about one inch of carbon steel but only 1/8 inch of stainless steel—the maximum thickness increases when the laser is used on non-metallic materials, such as wood or plastic.
CO2 lasers
The CO2 laser is a common material for laser cutting, but fiber lasers are becoming more popular for this application. Fiber lasers produce a much smaller spot, which allows them to cut metals more effectively. They also tend to be more efficient and have lower operating costs. In addition, they are also faster to set up.
CO2 lasers were introduced into the sheet-metal industry in 1972 and have improved. They continue to dominate the laser industry, but some industries are beginning to use fiber lasers instead. Fiber lasers have a shorter wavelength (only 1.06 microns) and can effectively cut various materials.
Fiber lasers
Fiber laser technology works by generating a highly concentrated beam of laser energy using stimulated radiation. A laser diode emits the light and is then sent through a fiber optic cable for amplification. This high-intensity beam converts to heat, melting the surface of the material. A high-speed airflow then clears the debris from the material.
Choosing the suitable assist gas is critical to a successful cutting process. Compressed air is the most straightforward gas, but you must ensure it is moisture and oil. Compressed air is a reactive gas in metal fabrication but less so than oxygen.
Photochemical etching
The medical field emphasizes early detection, prevention, and treatment of life-threatening illnesses. Photochemical etching helps create a variety of devices for patients, including orthopedic components, pacemakers, and neurotransmitters. Its precision allows physicians to customize implants according to the needs of patients.
Many names know photochemical etching. But in essence, it is the same process as photochemical milling. The process effectively creates intricate parts that are difficult to machine using conventional methods. It also allows for design changes, making it suitable for large-scale production. In addition, photo etching is the best choice for complex components such as apertures, fine screens, and fuel cell components.
Flame cutting
Laser cutting brass is an advanced method that helps increase metal fabrication efficiency. It is widely used in several industries. Brass laser cutting is beneficial for bicycle fabrication, sign-making, architecture, jewellery, and other fields where precise precision is essential. However, it is only available in some advanced metal shops.
Brass laser cutting is very effective for producing fine details and suitable quality lamps. It can also ensure a long service life, no rust, and a beautiful appearance. It can increase the profitability of lamp manufacturers and give them a rapid return on investment.
Conclusion
Laser fusion cutting is a fast and efficient method for cutting brass. The process uses a laser beam that can quickly heat the workpiece. It reaches the boiling point of the material very quickly. A rapid release of vapor follows this. The vapor then makes an incision into the material.
Laser cutting is effective for cutting brass because the workpiece is not subjected to mechanical force. The photon pressure exerts a negligible force on the workpiece; thus, no clamping is necessary. In contrast, mechanical clamping can cause deformation.
