The Age of Handheld Laser Welding in Metal Fabrication Has Arrived
The Age of Handheld Laser Welding in Metal Fabrication Has Arrived, handheld laser welding is gradually replacing traditional welding techniques such as MIG or TIG.
TIG welding, for example, is a time-consuming two-hand welding method that requires experienced and skilled operators. It generates extreme heat that deforms thin materials, makes it difficult to weld copper, and is limited in welding metals of different thicknesses.
As the industry continues to change, especially with the explosive growth of the new energy vehicle industry. Traction battery manufacturers are finding new ways to reduce costs and improve efficiency.
That’s why more and more manufacturers are upgrading their welding equipment and purchasing handheld laser welding. The handheld laser welding machine can increase the welding speed to 4-5 times that of traditional welding methods.
What advantages of laser welding?
Equipped with a water cooling system, imported compressors are used, the water tank and pump are made of stainless steel, and the heat transfer coil is made of stainless steel. This fully guarantees the working stability of the chiller, and the cooling effect is very good. The temperature accuracy can reach below 1°C, resulting in small deformation of the workpiece. Laser welding does not directly contact the parts, and the operation process is low-noise.
How does handheld laser welding work?
Laser welding can be achieved by continuous or pulsed laser beams. The principle of laser welding can be divided into heat conduction welding and laser deep penetration welding. When the power density is less than 104~105 W/cm2, it is heat conduction welding. At this time, the penetration depth is shallow and the welding speed is slow; when the power density is greater than 105~107 W/cm2, the metal surface is sunken into “cavities” by heating, forming deep penetration welding, which has It has the characteristics of fast welding speed and large aspect ratio.
Is the handheld laser welding machine complicated to operate?
The handheld laser welding machine is very convenient to operate. Basically can be divided into 4 steps.
- Clean the welding surface: clean the surface of the welding workpiece and remove the oil and moisture on the surface;
- Positioning: Control the laser emission position (X-axis) by adjusting the focal length, and adjusting to a suitable position according to actual needs;
- Adjust the operating distance: after adjusting the appropriate distance and angle, tighten the fixing screw of the lens barrel; lock the lens so that it is parallel to the optical axis (that is, the Y axis);
- Start: the switch button can start the machine; close the switch button of the lower cover to turn off the machine.
Safety guidelines for handheld laser machines?
- Operate strictly by the equipment manual.
Carry out standardized operation training, and paste the operation requirements on the conspicuous place of the operation site. To operate the machine normally, it needs to go through the three switches turning on the host enable switch, holding the power switch off the gun head, and pressing the light button to prevent accidental injuries
- Protection against beam radiation: Wear radiation-protective glasses and protective clothing
The laser welding machine will cause ionizing radiation and stimulated radiation during the welding process. This induced radiation will affect the eyes and body. Although the laser beam is very small, protective glasses and clothing are required to ensure absolute safety for the operator.
- Working environment: Strictly abide by hygiene standards
A large amount of ozone and oxynitride will be produced during laser welding; it will have an impact on human health. Therefore, the work site must have good ventilation, and fire prevention equipment, The distance between flammable materials and the welding place shall not be less than 5m. Or properly cover the remaining items with asbestos boards, asbestos cloth, etc. The distance between explosive materials and the welding station shall not be less than 10m.
Hand-held laser welding equipment belongs to high-power laser equipment with a high safety level (IV class). Therefore, when an unknown object enters the optical path, it is a mandatory function to automatically stop the laser power.
Manual laser welding enables efficient welding; easy to operate and carry. And the possibility of distortion, deformation, and burn-through of the weldment is minimized.
If you want to reduce costs and improve welding quality, Normaltan China handheld laser welding is your best choice.
N.C. Handheld Laser Welding Links