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What causes the weak welding of the laser welding machine?

Views: 112     Author: Site Editor     Publish Time: 09-03-2021      Origin: Site

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With the development of laser technology, laser welding machine welding has the characteristics of firm welding, small weld seam, and high welding efficiency. It has been widely used in various industries, such as: jewelry welding, stainless steel welding, welding of other materials, etc. However, Laser welding machines occasionally appear to be weak in welding during daily use, so what is the reason for the weak welding of laser welding machines? Let's analyze the Leapion laser for everyone.

The first reason for the weak welding of laser welding machine: the current of the laser welding machine is too small, and the welding time is short

Generally, the welding method of blood oxygen probe adopts short-term high-current welding, so that the best welding effect can be achieved. The welding time is determined according to the welding workpiece. Generally, the welding time is controlled in 2-5 cycles, 50 cycles per second. The condition for adopting this welding time is to take it under the condition of not overloading, and adjust the welding current after the welding time is set. The shorter the welding time, the greater the welding current.

The second reason for the weak welding of the laser welding machine: the surface of the welding workpiece is rusty or has oil stains

Laser welding has extremely high requirements on the surface of the welded workpiece. Rust, oil or other impurities on the surface of the workpiece may cause the welding spot of the laser welding machine to be weak and loose. When we are using a laser welding machine for welding, if the welding workpiece is rusty or oily, then the only contact with the laser welding machine is the rust or oily of the welding workpiece, so the welded product must be unqualified.

The third reason for the weak welding of the laser welding machine: the uneven surface of the welding workpiece and the unconnected surface

Because the welding surface of the workpiece is uneven and the connecting surface of the workpiece is rough, the concave part of the workpiece cannot be exposed to current, and there will be dew point leakage welding, so the welding will not be firm.

If the connection surface of the workpiece to be welded is not cleaned, the adhesion, oxide layer and dirt layer on the connection surface will hinder the welding, because these unclean connection surfaces hinder the flow of current and make it welded The back workpiece is not firm.

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So, how to solve the problem of weak welding of laser welding machine?

According to the above three different reasons, we can find the corresponding solutions:

1. If the welding current is too small or the welding time is too short, the solution is to increase the current and extend the welding time.

2. If the welding is not firm due to rust and oil on the surface of the welding workpiece, the solution is: before the laser welding machine is welded, the workpiece should be rust-removed and oil-proof to ensure that the laser welding machine is firm and beautiful.

3. If the welding is not firm due to the uneven surface of the welding workpiece, the solution is: to properly connect the workpiece and smooth the surface.

 

It can be seen that the welding time of the laser welding machine, welding current and the surface condition of the workpiece are important reasons that affect the welding effect of the laser welding machine. We must pay great attention to the laser welding. For more professional questions about laser welding machines, welcome to consult Leapion Laser.


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