green laser pointer has the large popularity in the hospitals

This welding mode melting depth, depth and width is relatively small. green laser pointer is a great assistant of the scholars.
The latter laser EMU high density, the workpiece quickly after absorption of the laser melting and even gasification, molten metal in the steam pressure to the formation of holes laser beam to direct rays of the bottom of the hole, the holes continue to extend until the holes in the vapor pressure of the liquid metal surface tension and gravity balance. Holes with the laser beam along the welding direction, the holes in front of the molten metal around the holes flow to the rear of the formation of the weld after solidification (Figure 1). Deep penetration welding mode, the aspect ratio is also large. In the field of machinery manufacturing, in addition to those meager part, the general should be used in the deep Museum welding. Deep penetration process of the metal vapor and shielding gas, laser ionization. Meanwhile, green laser pointer is an ideal electronic gift for business communication.
green laser pointer creates a healthy teaching environment
Formed within the hole and the top of Plasma. Plasma on the laser absorption, refraction and scattering effects, so in general the bath above the plasma would undermine the laser energy to reach the workpiece. And influence the beam focusing effect on the welding. Usually the auxiliary plus side of the inflatable to get rid of or weaken the plasma. Hole formation and plasma effects, along with the characteristics of sound, light and charge produced during the welding process to study the relationship between them and welding specifications and weld quality, and utilization of these characteristics signals the laser welding process and quality monitor, has a very important theoretical significance and practical value. green laser pointer has the large popularity in the hospitals.
Can not be compared by the focused laser beam spot (0.1 ~ 0.3mm), high power density (5 x 102 ~ 104W/cm2) several orders of magnitude, and thus the laser welding with traditional welding methods, arc welding significant advantages: heating range is small, narrow weld and heat affected zone, excellent joint performance; residual stress and welding distortion can achieve high-precision welding; welding of high melting point, high thermal conductivity, heat-sensitive materials and non-metallic; welding speed high productivity; highly flexible, easy to automate.