Laser cutting mechanism and evaluation index
Principle of laser cutting Laser cutting is to focus the laser beam into a small spot, causing it to act on the material. The laser power density can reach more than 106 W/cm2. Under such high power density laser irradiation Under the action, the metal material quickly vaporizes and evaporates, forming holes. The molten metal residue is blown away by the high-pressure gas blown out coaxially, forming a cutting slit. The cutting head moves under a pre-designed program to cut the corresponding shape. In laser cutting, oxygen is used as an auxiliary gas, which is beneficial to the cutting of certain metal sheets. At high temperatures, oxygen will undergo an […]
