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与其它焊接技术相比,激光焊接的主要优点是
 

1、速度快、深度大、变形小。


1, high speed, large depth, small deformation.

2、能在室温或特殊条件下进行焊接,焊接设备装置简单。例如,激光通过电磁场,光束不会偏移;激光在真空、空气及某种气体环境中均能施焊,并能通过玻璃或对光束透明的材料进行焊接。


2, can be at room temperature or under special conditions for welding, welding equipment, simple device. For example, the laser beam will not be offset by the electromagnetic field, the laser can be applied in the vacuum, air and some gas environment, and can be welded by glass or transparent material.


3、可焊接难熔材料如钛、石英等,并能对异性材料施焊,效果良好。


3, can be welded refractory materials such as titanium, quartz, etc., and can apply to the opposite sex, the effect is good.


4、激光聚焦后,功率密度高,在高功率器件焊接时,深宽比可达5:1,最高可达10:1。


4, laser focusing, high power density, high power devices in the welding, the depth to width ratio of up to 5:1, up to 10:1.


5、可进行微型焊接。激光束经聚焦后可获得很小的光斑,且能精确定位,可应用于大批量自动化生产的微、小型工件的组焊中。


5, can be micro welding. After focusing the laser beam can obtain a small spot, and can accurately positioning, can be applied to large quantities of automatic production of micro, small workpiece welding.


6、可焊接难以接近的部位,施行非接触远距离焊接,具有很大的灵活性。尤其是近几年来, 在YAG激光加工技术中采用了光纤传输技术,使激光焊接技术获得了更为广泛的推广和应用。


6, can be difficult to close the welding parts, the implementation of non contact distance welding, with great flexibility. Especially in recent years, in the YAG laser processing technology using the optical fiber transmission technology, so that laser welding technology has been more widely spread and application.


7、激光束易实现光束按时间与空间分光,能进行多光束同时加工及多工位加工,为更精密的焊接提供了条件。


7, the laser beam is easy to realize the light beam by time and space, can carry on multi beam at the same time processing and multi station processing, provides the condition for the more precise welding.


但是,激光焊接也存在着一定的局限性:


However, there are some limitations in laser welding:


1、要求焊件装配精度高,且要求光束在工件上的位置不能有显著偏移。这是因为激光聚焦后光斑尺雨寸小,焊缝窄,为加填充金属材料。若工件装配精度或光束定位精度达不到要求,很容易造成焊接缺憾。


1, the requirements of high precision welding parts, and requires the beam position on the workpiece can not be significantly offset. It is because of the small size and narrow weld of the spot size after laser focusing. If the workpiece assembly precision or beam positioning accuracy is not up to the requirements, it is easy to cause welding defects.


2、激光器及其相关系统的成本较高,一次性投资较大。


2, the cost of the laser and related systems is higher, a one-time investment is larger.

 

合肥钣金加工官方网站:http://www.hfzbjg.com/

 

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