When it comes to laser cutting machines cutting high-reflective materials, we need to pay special attention. The characteristics of high-reflective materials make the cutting process more challenging because most of the laser energy will be reflected rather than absorbed.
In order to avoid damage to the laser and ensure cutting quality, we must understand the principles and precautions of cutting high-reflective materials
Principle:
Highly reflective materials, such as copper, have a very low absorption rate for infrared lasers at room temperature, usually only 5%. When the material is in a molten state, the absorption rate can reach 20%. This means that 80% of the laser is reflected during the cutting process and reflected out at various angles. There is a high probability that it will be returned vertically to the cutting head along the original optical path into the optical device and the welding point, causing the temperature to rise, which may cause the device and the welding point to burn out.
Notes:
a. Use conservative cutting parameters: ensure that each cut can cut through the material to ensure that the light propagates in the downward direction and reduce the impact of reflected light on the device and the weld point.
b. Monitor optical path abnormalities: If any abnormality is found in the optical path, do not try to continue cutting. Stop the operation immediately and find a professional to confirm the problem before proceeding. This can avoid further damage to the laser device and weld point.
c. Control device temperature: It is very important to control the temperature of the weld point inside the laser. When cutting highly reflective materials, pay special attention to controlling the device temperature to prevent overheating and damage to the device.
Although cutting highly reflective materials may present certain challenges, modern laser cutting machine manufacturers are constantly improving the laser's ability to cut highly reflective materials.
Therefore, when cutting highly reflective materials, following the above precautions can reduce losses and ensure safe operation
Jinan Gold Mark CNC Machinery Co., Ltd. is a high-tech industry enterprise specialized in researching, manufacturing and selling the machines as follows: Laser Engraver, Fiber Laser Marking Machine, CNC Router. The products have been widely used in advertisement board, crafts and molding, architecture, seal, label, woodcutting and engraving, stonework decoration, leather cutting, garment industries, and so on. On the base of absorbing the international advanced technology, we provide the clients the most advanced production and perfect after-sale service. In recently years, our products have been sold not only in China, but also as far as Southeast Asia, Middle east, Europe, South America and other overseas Markets.
Post time: Jul-19-2024