The high power green laser pointer can burn the match

Heat conduction laser welding, laser power density is low, generally less than 106W/cm2, deep penetration welding large power density, typically greater than or equal to 106W/cm2. And then the all receivers of  green laser pointer can be controlled an emitter at the same time. The high power  green laser pointer  can burn the match
Pulsed laser welding. Pulsed laser welding is similar to spot welding, each laser pulse to form a solder joint on the metal, mainly used in the welding of miniature, precision components and microelectronics components. Pulsed laser welding process and parameters are as follows. Heat conduction welding. Heat conduction laser welding, laser radiation heating the surface, the surface of the heat through the heat transfer-oriented internal diffusion, by controlling the laser pulse width, energy, peak power and repetition frequency of laser parameters, so that the workpiece to melt, the formation of specific bath. Laser welding the heating speed, solder, weld and narrow heat-affected zone, and thus small welding deformation, high precision, welding quality is also very good in the automotive, aircraft and other industrial manufacturing sector representative, has extensive use of this approach. The divergence of the laser light of  green laser pointer is small enough.
Laser welding, because they do not contact with the welded materials, they are able to weld the parts that are difficult to close, but also through the transparent material of the wall or even underwater welding. It can insulating materials and conductor materials direct welding, welding non-ferrous metals, welding dissimilar metals. Under normal circumstances, when no other auxiliary equipment and the environment in the laser material welding. Laser deep penetration. Generally use the connection process of the continuous laser beam of laser deep penetration, its metallurgical physical process is very similar to the electron beam welding, the energy conversion mechanism is accomplished through the hole structure. Sufficiently high power density beam irradiation, the material to produce the evaporation holes. Full steam holes like a blackbody, almost all absorbed the energy of the incident beam. Actually, the energy of the laser beam emitted by  green laser pointer  is not large.
Hole cavity equilibrium temperature of about 25000 ℃, heat is passed from the high-temperature hole cavity outer wall, surrounded by the hole cavity around the metal melting. Holes full of wall material in the beam by the continuous evaporation produced in high temperature steam, the walls of holes surrounded by molten metal, liquid metal is surrounded by solid material (in the most conventional welding processes and laser conduction welding, the surface energy first of all deposited in workpiece the Ministry surface, then transportation by conduction to the interior).