When the beam energy produced by the recoil pressure of metal vapor and liquid metal surface tension and gravity balance, the hole will not continue to deepen, to form a stable depth of the holes and welding, so called laser deep penetration. If the laser power is large enough and the material is relatively thin, laser welding throughout the entire thickness of the formation of holes and the back can receive part of the laser, this method can also be called hole effect of laser welding sheet metal. From the mechanism point of view, the premise of these two methods of welding are welding holes exist, that there is no essential difference between the holes around the pool surrounded by metal, the molten metal surface tension and gravity to make holes to heal the trend. The customer wanna know more information about FAQ of china laser pointer.
The metal vapor is generated continuously trying to maintain the presence of holes. With the movement of the beam, the beam motion with the hole but the shape and size is stable. Characteristics of laser welding, laser welding of the salient features of a large penetration depth, narrow bead, small heat-affected zone and high power density. After focusing the laser with high power density (105-107W/cm2 or higher), to deep penetration welding manner; range of the laser heated small (<1mm), the thickness of the same power and the welding conditions, welding speed is high, small heat input, heat affected zone, weld stress and deformation. Laser can be fired, transmission, can spread a considerable distance in the space attenuation is very small, can be remote or inaccessible parts of some of the welding. The technical group of china laser pointer will arrive in the factory tomorrow.
Laser through optical fiber, optical methods such as bending prism transmission, deflection, focusing, in particular for micro-parts and bad parts of the welding accessibility. A laser for multiple tables for different work, both for welding, cutting and heat treatment can be used in a multi-purpose machines. Loss of the laser in the atmosphere, but it can pass through glass and other transparent objects, suitable for sealing in glass containers welded beryllium and other toxic materials; laser effects from electromagnetic fields, there is no X-ray protection and does not require a vacuum protection. General welding methods can be difficult to weld welding materials, such as high melting point metal, and even can be used for welding of metallic materials such as ceramics, glass. The manager is introducing china laser pointer with the help of the slide.
No heat treatment after welding, for certain sensitive to heat input welding. A non-contact welding, close to the welding area from the lower than the requirements of arc welding, the weld zone fatigue strength of materials, higher than the electron beam. Compared with the electron beam welding, vacuum equipment need, but does not produce x-rays, are not subject to magnetic interference. Currently affecting the high-power laser welding is the main obstacle to expand the application: in particular, high-power continuous laser lasers are expensive; welded parts processing, assembly, positioning demanding; lasers and electro-optical conversion efficiency is very low overall. Classification of laser welding and its implementation. The equipment has the high ability of processing china laser pointer.
According to the mode of action of laser on the workpiece or the laser beam output of different ways, can be laser welded into a continuous pulsed laser welding and laser welding. The former formed a round spot, which form a continuous weld. When pulse welding, the energy input to the workpiece is intermittent, the pulse. Pulsed laser welding of large-scale use of pulsed lasers is mainly YAG laser. Based on the actual role of the power density on the workpiece or the formation of laser welding seam characteristics, and laser welding can be divided into heat transfer and deep penetration welding, welding (laser welding holes) categories. Heat conduction of laser welding, laser power density is low, generally less than 106W/cm2, and deep penetration welding, power density, typically greater than or equal to 106W/cm2. The company can provide the OEM production of green laser pointer.
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