The enhancement of green laser pointer should be done from time to time

The enhancement of  green laser pointer  should be done from time to time.
Adhering to the "on behalf of the national competitiveness internationally competitive business objectives continue to contribute to China's aerospace business. The world's first laser was born in 1960, China in 1961 developed the first laser, 40 years, the rapid development of laser technology and applications, with multiple disciplines combine to form more than one application of technology. In the eighties of the last century, the laser technology used in the automotive sector, mainly the use of laser welding of the body. So, what is called the laser technology? The technology of laser polarizer reflected laser beam so that it focus on huge energy beam focusing device, if the focus is close to the workpiece, public opponent will melt and evaporation within a few milliseconds, this effect can be used in the welding process. The workshop should adopt the laser chip of  green laser pointer at the advanced level.
The key to laser welding equipment is a high-power lasers, there are two main categories, a solid-state lasers, also known as Nd: YAG laser. Nd (neodymium) is a rare earth element, YAG on behalf of the yttrium aluminum garnet, crystal structure and ruby. Nd: YAG laser wavelength of 1.06μm, the main advantage is that the resulting beam can be transmitted through optical fibers, and therefore eliminates the need for complex beam delivery system for flexible manufacturing systems or remote processing, usually used in relatively high welding precision workpiece. Commonly used in the automotive industry output power of 3-4 kW Nd: YAG laser. The other is a gas laser, also known as CO2 lasers, molecular gas as working medium, resulting in the average for the 10.6μm infrared laser.
Mainly used for seal welding or seam welding workpiece, such as the fuel tank. Welding of carbon dioxide is an arc welding, the local heating to melt and connecting parts without the need to put pressure on a welding arc between the electrode and the workpiece as heat source at the same time to impose carbon dioxide cover the arc and the molten zone, so separated with the atmosphere, mainly used for body skin welding. It is mainly with: easy to control, speed, and high degree of automation; due to local heating, the workpiece will not produce thermal damage, the thermal distortion is small; high precision welding, repeat the operation, good stability, and high yield; non-contact processing, without welding aids; welding, without welding rod or filler material can be obtained without impurities, pollution-free weld.