The technical reform of laser pointer should be considered at first

Using this method can also be arc welding spot.
This kind of laser pointer has the higher expense. Deep penetration of the laser impact factors include: laser power, laser beam diameter, material absorption rate, welding speed, shielding gas, lens focal length, focus position, laser beam position, weld start and end point of the laser power gradually rise , gradually decreased control. Deep penetration of laser characteristics and advantages. Characteristics: high aspect ratio. Because the molten metal around the cylindrical steam chamber and extends to the formation of the workpiece, the weld becomes deep and narrow. Minimum heat input. Because the source chamber temperature is high, the melting process occurs very fast, very low heat input workpiece, heat distortion and heat affected zone is very small. High compactness. Because it is full of high-temperature steam in the weld pool small Kongyou Li mixing and gas escape, leading to generate non-porous weld penetration. High cooling rate after welding to weld and easy miniaturization. Strong weld. Precise control. Non-contact, air welding process. The technical reform of laser pointer should be considered at first.
Advantages: As the focused laser beam is much higher than the conventional method of power density, resulting in welding speed, heat-affected zone and deformation are small, you can weld titanium, quartz and other hard to weld materials. Because the beam is easy to transport and control, and does not require frequent replacement torch, nozzle, significantly reducing downtime auxiliary time, so there are load factor and efficiency are high. As the role of purification and high cooling rate, weld strength, high overall performance. As the balance of heat input is low, high precision, can reduce reprocessing costs. In addition, the dynamic transfer of laser welding costs are relatively low, can reduce production costs. Easy to automate and fine positioning of the beam intensity can be effectively controlled. Deep penetration of laser equipment. Deep penetration of laser generally used continuous wave CO2 laser, these lasers can maintain a sufficiently high output power, resulting in "holes" effect, penetration throughout the workpiece cross-section to form a tough welded joints.
Soon after, fiber lasers are used for optical information processing work c31. Fiber amplifier in the early work is still in the former Soviet Union Letokhov and PavliLL4J. Interesting article is a very important chip in a high silver and Hockham's c53, who in 1966 first discussed the use of the possibility of optical fiber as a communication medium.
Will weld quality control of laser welding plays an important role, it will be the study of laser welding is an important direction.