The following are the steps of laser welding the surface with a common microscope:
1. Preparation: Make sure that the curved surface is clean, free of oil and impurities. It is also necessary to adjust and calibrate the laser welding equipment to ensure the accuracy of welding parameters.
2. Positioning and clamping: install the curved surface parts to be welded on the fixed fixture and clamp them with the fixture to ensure stability. For surfaces with complex shapes, it may be necessary to use specially designed fixtures or positioning tools.
3. Preheating the welding area: curved surface welding needs automatic or manual preheating around the welding area to reduce thermal stress and tissue deformation during welding. The preheating temperature should be adjusted according to the type and thickness of the material.
4. Welding parameter setting: According to the type and thickness of materials, as well as the shape and requirements of curved surfaces, set appropriate welding parameters, such as power, welding speed and focal length.
5. Precise welding by microscope: Observe the welding process by microscope, and accurately control the position and depth of solder joint. Pay attention to maintaining the stability and overall quality of the welding area.
6. Cooling and treatment: After welding, take appropriate cooling measures to reduce residual thermal stress and avoid deformation of materials and welds. For large or complex welding surfaces, additional heat treatment steps may be needed to eliminate residual stress.
It should be noted that welding curved surfaces is a highly technical task, which requires professional training and experience. Therefore, if you don't have the corresponding professional knowledge and experience, it is recommended to consult a professional welding engineer or relevant institutions to ensure welding quality and safety.