Laser welding machines occupy a very important part in the fields of metal processing. When purchasing a welding machine product, the most worrying thing for the person in charge of purchasing is the quality of its welding, and how to judge this? Legent Laser suggests that it should be judged from four aspects.
First, it is necessary to accurately judge the melting phenomenon during the welding operation.
The strength of the melting phenomenon during such an operation also depends on the composition of various factors. For example, the time, power density and peak power of the laser on the surface of the material. As long as these factors are well controlled, a variety of welding processes can be performed using lasers. There is another factor that is the most critical in the welding process of metal laser welding machines - the focus of the beam. The position of the beam focus is the most important one, given the relevant factors of laser power and welding speed, when the focus is in the optimal range, it can provide the maximum penetration and better weld shape.
Secondly, the most basic thing to judge the welding effect is to be familiar with the welding method of the metal laser welding machine.
There are two common laser welding methods. The first one is pulsed laser welding, which is mainly used for single-point fixed continuity and welding of thin materials. When welding, they become circular solder joints; The second is called continuous laser welding, and its main function is to use in the welding and cutting of large and thick parts, and gradually form a continuous weld during the welding operation. Not only the understanding of laser welding methods, but also the selection of basic welding materials, the selection of metal laser welding machines, and the selection of processing workbenches, which all affect the effect of laser welding. Therefore, before making a judgment, you must reserve the relevant knowledge about it before you can make progress.
Thirdly, the selection of the frequency of the metal laser welding machine.
When using a metal laser welding machine, its staff will adjust according to the customer's requirements for the efficiency of the metal laser welding machine. The main purpose of adjusting its frequency parameters is to improve the welding efficiency, especially in the face of some delicate metal laser welding. Combine it with the galvanometer and scanning system, and the effect of frequency will play a greater role. And how to adjust to the appropriate frequency will be a technical problem, and it is also related to other aspects, so it is only possible to obtain a perfect welding effect if the overall effect is improved to the extreme.
Fourth, it is the monitoring of the tensile strength of the metal laser welding machine.
When the machine is working, check whether its ability to expand the tensile strength meets our needs, and judge the quality of its welding effect according to the results after the inspection. During the period, if there is a bad situation such as poor welding, considering many factors, we should start from the essence rather than the surface. It may not necessarily be an error in the welding machine, or it may be that the selection of the material is incorrect, so you should immediately replace the material or change the waveform data of the metal laser welding machine to weld again, and then conduct an effect evaluation.
Therefore, only after you are familiar with the above aspects can you know how to distinguish the welding effect of a metal laser welding machine. Of course, everything requires field operation and patient learning, and it will only benefit you to have relevant knowledge about the machine.
