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Which is Better? Automatic or Hand-held Laser Welding Machine?

Mar 15, 2021

The handheld laser welding machine uses high-energy laser pulses to locally heat a small area of the material. The energy of the laser radiation diffuses into the material through heat conduction, and the material is melted to form a specific molten pool. The hand-held laser welding machine can be used in the welding of relatively large products in industries such as cabinets, kitchens, shelves, ovens, stainless steel door and window guardrails, etc. It is not suitable for precise welding, and the welding speed is slow, requiring manual operation.

Handheld laser welding machine

Disadvantages of handheld laser welding machine:

1. In the process of crack laser welding, because the heat input of the laser is small, the welding deformation is small and the welding stress is also small, so high-temperature cracks will not occur under normal circumstances. However, due to the different raw materials and improper selection of process parameters, high-temperature cracks sometimes occur.

2. Removal and weldability changes When performing medium to high-energy laser beam welding, a plasma controller must be used to drive out the ionized gas around the molten pool to ensure the reappearance of the weld bead. Moreover, in materials with high reflectivity and high thermal conductivity, such as aluminum, copper and their alloys, the weldability will be changed by laser during welding.

3. Welding spatter When laser welding is completed, there will be many metal particles on the surface of some workpieces or materials. These metal particles are attached to the surface of the workpiece or materials, which not only affects the beauty, but also affects the application. The reason for this phenomenon is that there are stains on the surface of the workpiece or the material, or the galvanized layer.

4. Welding bead When the weld trajectory changes greatly, it is easy to show welding bead or unevenness at the corners. The reason for this phenomenon is that the trajectory of the welding seam changes greatly and the teaching is uneven. At this time, you need to adjust the welding parameters to connect the excessive corners for processing.

The automatic laser welding machine can effectively solve these pain points. Advantages of using laser soldering machine:

1. The laser soldering machine adopts non-contact welding, no stress is generated;

2. The laser soldering machine uses non-contact heating to melt the bandwidth. It does not require any auxiliary tools. It can be processed on the double-sided printed circuit board with double-sided components without the threat of static electricity.

3. Good stability for repeated operation. Flux has little pollution to welding tools

4. The welding speed of the laser soldering machine is fast, which is three times the speed of the ordinary soldering machine;

5. No space limitation, laser soldering machine can weld narrow areas and micro components

6. The laser soldering machine has no soldering iron tip damage and less consumables

7. It can realize automatic visual programming, easy to realize automation

8. The laser soldering machine has a long life, low power consumption and low maintenance cost.

automatic laser welding machine

Laser soldering machine application fields: widely used in medical, military and automotive electronics industries, especially for soldering iron tips that are prone to interference, soldering devices are sensitive to temperature, and have higher automation requirements. They have more obvious advantages. At the same time, laser wire feeding solder can be substituted Traditional manual welding realizes automated production. The wire feeding solder of the laser soldering machine is suitable for products with large solder joints such as PCB boards, FPCB boards, and connecting terminals; at the same time, due to the better controllability of laser energy, it can weld traditional high heat dissipation materials.