Sunday, September 9, 2012

This new kind of laser pointer is welcomed in the market

This new kind of laser pointer is welcomed in the market.
Through computer processing, and requirements for different welding objects, such as seam tracking to achieve, defect detection, weld quality monitoring project, through feedback control adjustment of welding parameters, in order to achieve automation of laser welding. In laser welding, the beam focus position is the most critical process parameters to control one, in a certain laser power and welding speed, the only focus in the best position to get the maximum range and good weld penetration shape. In practice, laser welding, in order to avoid and reduce the factors that affect the stability of the focus position, the clamping and require specialized equipment and technology, the accuracy of this equipment and the quality of laser welding of high and low are mutually reinforcing. The main features of laser welding. Compared with other conventional welding, laser welding of the main advantages are: speed, depth, and deformation. At room temperature or under special conditions, welding, welding equipment installation simple. For example, the laser through the electromagnetic field, the beam does not shift; laser in a vacuum, air and a gas welding environment can, and can be glass or transparent material of the beam welding. The customer should make the requirement of customization of laser pattern of laser pointer clear.
Refractory materials can be welded, such as titanium, quartz, and welding materials to the opposite sex, to good effect. Laser-focused, high power density, high power devices in the welding, the depth-width ratio up to 5:1, up to 10:1. Can be micro-welding. Obtained after focusing the laser beam by a small spot, and can accurately locate, can be applied to high-volume automated production of micro, small welding of the workpiece. Inaccessible parts can be welded, the implementation of long-range non-contact welding, a lot of flexibility. In particular, in recent years, the YAG laser processing technology uses fiber-optic transmission technology, the laser welding technology to obtain a wider range of promotion and application. Laser beam is easy to achieve beam splitting by time and space, capable of simultaneously processing and multi-beam multi-station machining, welding to provide a more precise conditions. However, laser welding, there are also some limitations: weldment assembly requires high precision, and require the location of the beam on the workpiece can not significantly offset. The production line of laser pointer should be rebuilt.
This is because the laser spot size after focusing on the rain-inch small, narrow weld for added filler metal materials. If the workpiece assembly precision beam positioning accuracy or fail to meet requirements, it is likely to cause welding defects. Lasers and their associated high cost of the system, a one-time investment is large. Laser welding is a high-intensity laser beam radiation to the metal surface by laser interaction with metal, the metal to melt solder. The laser interaction with metals, metal melting is only one of the physical phenomena. Sometimes light is not primarily into metal melting, and in other forms, such as vaporization, plasma formation.

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