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Welding With Co2 Laser. Today diode lasers cover a complete array of joining spectrum and offer suitable tools for different welding applications. The blue line in Figure 1 is the welding performance of a different design of continuously operating NdYAG laser developed by Lumonics Corporation.
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The keyhole greatly affects the absorption of laser and makes remarkable influence. In laser welding of metals with a high power continuous CO2 laser a so-called keyhole is formed in the material. For example when the CO2 laser power is 0.
A disadvantage of the laser welding process is its restriction to plates.
Requirements for the laser welding of different metals are examined in the context of hardware laser system and beam delivery selection and examples of welding speeds that can be achieved using CO2 and NdYAG lasers are examined. Welding regulators and cylinders connect using a CGA-580 style fitting while CO2 uses the CGA-320 style. The use of a 2-kW CO2 laser to weld or cut steel titanium and aluminum alloy plates is discussed. A laser is merely a highly concentrated beam of light that delivers a vast amount of power.
