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Analysis of the advantages of laser precision welding
发布时间:2017-11-21 10:05:20浏览次数: Article source : Editor's release time : 2017-11-21 10: 05: 20Views

In the welding field, there are four types of precision welding: precision resistance welding, laser welding, ultrasonic welding, and micro-arc spot welding. And because of the characteristics of the laser itself, compared with other welding processes, precision laser welding has the advantages of high efficiency and environmental protection, and high processing accuracy. It represents the development direction of precision welding processing.

With the development of welding processing, its prospects are very broad. Let's talk about its advantages first:

1) Welding of various trajectories is possible. The laser has a strong directivity, which is also very effective for welding irregular materials;

2) Welding is firm. After the laser is focused, the light spot is small and the energy density is high, ensuring that the beam forms a heat source area in a short time, and forms a solid weld and a joint after melting and cooling;

3) High welding accuracy. The distribution of laser energy has the characteristics of time and space. So that the light beam can be divided into multiple optical paths for processing operations at the same time. Strong guarantee for welding accuracy;

4) Fast welding speed. Laser technology is combined with microcomputer CNC technology. In terms of equipment key detection and motion control systems, the system integration with real-time detection and feedback processing accelerates the speed of system information processing and improves welding efficiency.

But everything has advantages and disadvantages. Having said the advantages, let's talk about its disadvantages:

a) small welding penetration;

b) poor welding joint performance;

c) the cost of consumables required by the equipment is high;

With the continuous development of laser technology, in view of the shortcomings of precision laser welding processing, people have adopted new solutions to improve the heating of workpieces by laser, and use laser hybrid welding (such as laser and plasma arc welding, dual laser beam welding) to improve This improves the performance of laser welded joints and reduces equipment costs.


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