Manhart How to determine the optimal welding parameters for handheld laser welding machines?

Determining the optimal welding parameters for a handheld laser welding machine is a multi-step process, and the following is a clear step-by-step guide that combines relevant information from the reference article:
### 1. Clarify welding requirements
** * Material type and thickness * *: First, determine the type and thickness of the material to be welded, as different materials and thicknesses have different requirements for laser power and welding speed.
*Weld requirements: Clearly define the quality, depth, and width requirements of the weld, which will directly affect the selection of welding parameters.
### 2. Set initial parameters
** * Laser power * *: Select a preliminary laser power range based on the material type and thickness. Generally speaking, the laser power is between 1000 watts and 6000 watts, and the specific value needs to be adjusted according to the specific situation.
*Welding speed: The initial setting for welding speed is between 0.5 meters/minute and 2 meters/minute, which is only a rough range and requires further adjustment.
** * Focus position * *: Set the focus position on the material surface or slightly below the surface to achieve the best welding effect.
### 3. Parameter adjustment and optimization
*Gradual adjustment of laser power: Starting from the set initial power, gradually increase or decrease the laser power and observe the quality of the weld seam. If the weld seam is too shallow or not fully fused, the laser power can be increased appropriately; If the weld seam overheats or burns through, the laser power should be reduced.
** * Adjusting welding speed * *: Similarly, starting from the set initial speed, gradually adjust the welding speed. If the weld seam width is too large or the welding is discontinuous, the welding speed should be reduced; If the weld seam is too narrow or cracks appear, the welding speed should be increased.
** * Focus position adjustment * *: Adjust the focus position according to the welding effect to achieve the best welding effect.
### 4. Consider other parameters
** * Protective Gas * *: Choose a suitable protective gas, such as nitrogen, argon, or helium, to protect the welding area from air pollution.
*Welding mode: Select the appropriate welding mode based on the material and weld requirements, such as continuous welding or pulse welding.
*Welding angle: Adjust the welding angle, usually between 45 degrees and 90 degrees, to achieve the best welding effect.
### 5. Welding test
*Conduct actual welding tests using the set parameters to check if the weld quality, welding speed, and welding depth meet the requirements.
*Based on the test results, fine tune the parameters until the optimal welding parameter combination is found.
### 6. Recording and Preservation
*Record and save the best welding parameters for future use in production.
*For different materials and weld requirements, it may be necessary to adjust parameters, so a parameter library should be established for quick searching and adjustment.
Through the above steps, the optimal welding parameters of the handheld laser welding machine can be determined. Please note that these parameters may vary slightly due to factors such as materials, equipment, and environment, so appropriate adjustments and optimizations are needed in practical operation.