Handheld laser welding parameter adjustment skills

Parameter adjustment skills
It is very important to set and adjust parameters correctly when performing handheld laser welding. Here are some parameter adjustment techniques:

1. Power
Handheld laser welding machines are usually equipped with adjustable focal lengths. During the welding process, the focal length can be adjusted according to the condition of the weld seam, and the power can also be adjusted. Welding parts of different materials and thicknesses requires different power settings. Generally, wide welds require high power, while narrow welds require low power. It is recommended to start with low power and gradually increase the power until the best welding effect is achieved.

2. Focus position
Adjusting the focus position can change the focal length of the laser beam, thereby adjusting the depth of welding and the width of the welding line. Welding seams that are too wide or not deep enough may be caused by incorrect focusing positions. Before welding, it is necessary to carefully adjust the focus position to achieve the best welding effect.

3. Scanning speed
The welding speed must match the power, too fast speed will lead to a decrease in welding quality, and too slow speed will lead to too deep welding depth. When welding relatively simple parts, the scanning speed can be gradually adjusted. Generally speaking, slow scanning speed leads to long welding time, and the laser welding head has a significant impact on the parts, resulting in a decrease in welding quality; If the scanning speed is too fast, the welding depth may be insufficient.

Issues to be noted during adjustment
1. Single step adjustment
When adjusting parameters, it should be done step by step, gradually increasing power, adjusting focus position, and scanning speed. Each adjustment step requires welding a short distance, checking the welding quality, and ensuring that the welding quality after adjustment will not decrease due to excessive adjustment.

2. Monitoring capability
When adjusting parameters, pay attention to observing the condition of the weld seam to ensure that the quality and style of the weld seam meet the requirements. Some more advanced devices will automatically monitor the condition of welds and provide assistance to operators. If it is uncertain whether the welding quality meets the standards, it is recommended to use test samples for testing.

3. Safe operation
Handheld laser welding machines require appropriate protective measures to prevent operators from being injured by lasers. Wear appropriate personal protective equipment during operation and avoid watching laser beams to prevent eye damage.

In short, setting and adjusting parameters correctly when using a handheld laser welding machine is an important factor in ensuring welding quality and efficiency. By gradually adjusting various parameters, the operator can achieve the best welding effect.