Laser of high-power green laser pointer should be carefully handled

 Once the eyes are exposed to the laser beam of green laser pointer , they will get hurt.
The results show that: current, pulse width, frequency, defocus amount of joints forming. When the welding current is large, easy to burn through, undercut defects; when the pulse width too large, the heat output by the laser is not continuous, as the general instability of the "tide"; when the frequency is too large, the laser output energy density, the weld surface wave shape of the dense layers of fish phosphorus-shaped weld layer; the contrary, when the welding current, pulse width, frequency, small, in the surface of the weld nugget easy not welded through the defect, the joint strength and toughness is low; when the welding current, pulse width, with reasonable frequency, strength and ductility of the joints, respectively, of base metal 90% and 85%. Laser of high-power green laser pointer should be carefully handled.
Key words: laser welding, copper, and optimize the design, mechanical properties, grain size. Laser welding between carbon steel, ordinary alloy steel, stainless steel, different steel, stainless steel - low carbon steel, 416 stainless steel -310 stainless steel, 347 stainless steel the-HASTALLY nickel alloy, nickel electrode - cold forged steel, nickel content bi-metal band the same material of the variety of metals and their alloys of titanium, nickel, tin, copper, aluminum, chromium, niobium, gold, silver, steel, Kovar alloy welding. Copper - nickel, nickel - titanium, copper - titanium, titanium - molybdenum, brass - copper, low carbon steel - copper and other dissimilar metals welding. Cell phone batteries, jewelry, electronic components, sensors, clocks, precision machinery, communications, arts and crafts and other industries. The green laser pointer should be added with warning labels.
Laser welding technology. The application of information technology survey online Contributors Favorite comment text recommended to print text. Laser welding and electron beam welding, there are many similarities, but it does not require a vacuum chamber, does not produce X-ray, more suitable to promote the use of production. Laser welding has become the mainstream of high-energy beam welding technology development. Characteristics of the laser welding process.