1, precision CNC sheet metal processing of high power density: the workpiece absorbs the rapid warming of sheet metal processing, and melting or evaporation. Even materials with high melting point, high hardness and brittleness (such as ceramics and diamond) can be processed by sheet metal processing;

2, sheet metal processing beam is easy to control: easy to combine with precision machinery, precision measurement technology and electronic computers to achieve high automation and high processing accuracy;

3, sheet metal processing is convenient and flexible: robots can be in harsh environments or other people are difficult to access places for sheet metal processing.

4, precision CNC sheet metal processing wide range of applications: sheet metal processing beam divergence angle can be less than 1 milliradian, spot diameter can be as small as microns, the role of time can be as short as nanoseconds and picoseconds. At the same time, the continuous output power of high-power sheet metal processing can reach the order of kilowatts to ten kilowatts. Therefore, sheet metal processing is suitable for both precision CNC sheet metal processing and micromachining, as well as large-scale material processing.

In modern machine manufacturing, methods of joining two or more parts or components together include bolting, riveting, bonding and welding. The first two types of connections are mechanical and removable. Whereas welding is achieved by bonding between the atoms of two objects which forms a permanent bond and cannot be dismantled after joining. The connection method chosen in practice should be considered for its reliability and economy. One should also familiarize himself with the characteristics of various joining methods. Welding: