Application Of Laser Cleaning On Weld Seam
Mar 10, 2023
A weld is the part of a joint formed by welded parts. It is very difficult to clean the rust and scale on the surface of stainless steel parts, plates and equipment, as well as the yellow, blue and black solder joints and other dirt and oil after welding. Clean up the blue-black solder joints.
The core principle of laser cleaning (weld bead, weld seam, welding slag, solder joint) technology is to irradiate the surface of the workpiece to be treated with a laser beam. The dirt is instantly peeled off the substrate and the original surface of the material is restored. The whole process is physical and mechanical, and will not produce new substances and pollution. Laser cleaning technology is an emerging process with high efficiency, environmental protection and low cost.

After welding, welding slag remains in the weld. Generally, the welding slag needs to be cleaned after the welding is completed. The use of laser cleaning equipment can replace the traditional pre-welding pretreatment and post-welding traditional cleaning methods to clean the metal parts to be welded or the metal parts after welding. It can not only clean the metal after welding, but also clean the metal surface before welding, which can improve the welding quality and efficiency.
In the case of welding under complex working conditions, the workpiece can be perfectly cleaned without disassembling the workpiece, which avoids the disassembly, installation and environmental pollution problems required by traditional cleaning methods, and at the same time greatly improves the welding efficiency.
Application of laser in welding seam cleaning:
1. Non-contact cleaning:
Laser cleaning does not contact the surface of the material and has wide applicability. It can be used to clean workpieces of various shapes, and can solve complex surface problems that are difficult to deal with by traditional cleaning.
2. No damage to the base material:
After cleaning the surface pollutants, the laser cleaning technology will not cause damage to the substrate or the product, and can solve the problem that the traditional cleaning and grinding methods are easy to cause damage to the surface of the workpiece.
3. High efficiency and environmental protection:
Laser cleaning technology is efficient, energy-saving, and environmentally friendly, and can effectively solve the problems related to chemical cleaning, such as substrate damage, limited workpiece size, long time and low efficiency, and chemical reagents that are harmful to the human body. and environment.

The prospect of laser cleaning technology:
The emergence of laser cleaning technology has opened up a new field of industrial application of laser technology. It is in the ascendant in the fields of microelectronics, construction, nuclear power plants, automobile manufacturing, medical treatment, cultural relics protection, etc., and has a broad application market prospect. The application of large-scale laser processing technology in my country has begun to take shape, and the application in steel rust removal and mold decontamination is still blank, while the market of laser cleaning technology in automobile manufacturing, construction and other fields is still blank and is being developed. It is difficult to estimate the application market share of laser cleaning technology in detail, but many of the above-mentioned fields belong to the pillar industries of the national economy. After adding laser cleaning technology, the economic and social benefits are very considerable. Utilize the existing laser technology conditions in our country, develop matching laser cleaning equipment, and make it practical and industrialized in a short time. It is entirely possible, and it is also of great significance to promote the development of the high-tech industry itself.








