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Application of laser cleaning machine after welding

Apr 24,2023 | TOPTEK

The purpose of laser cleaning after metal welding is to ensure the tightness of the weld seam after welding, because the weld seam contains various impurities that need to be cleaned, and on the other hand, it will also affect the appearance after welding. The use of laser cleaning equipment can replace the traditional pre-weld pretreatment and traditional post-weld cleaning methods to clean the metal parts to be welded or after welding.

The principle of laser cleaning weld seam:
The core principle of laser cleaning (weld bead, weld seam, welding slag, welding spot) technology is to irradiate the surface of the workpiece to be treated with a laser beam. Under the concentration of laser energy, the beam irradiates huge energy on the surface, breaking the pollution layer. Dirt is immediately stripped from the substrate and the material returns to its original appearance. 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.

The laser cleaning machine can not only clean the weld seam after welding, but also perform pretreatment and cleaning operations on the metal surface before metal welding to remove impurities on the metal surface and avoid welding defects, such as pores, slag inclusions, and incomplete fusion wait

Advantages of laser cleaning in weld seam cleaning:
1. Non-contact cleaning: Laser cleaning technology has no contact with the material surface. Wide applicability, can be used to clean parts of various shapes. It can solve the problem that mechanical cleaning is difficult to deal with complex curved surface processing.

2. No damage to the base material: After the surface pollutants are cleaned by laser cleaning technology, there is no damage to the base material or the product, which solves the problem that mechanical grinding is easy to cause damage to the product surface.
3. High efficiency and environmental protection: laser cleaning technology is efficient, energy-saving and environmentally friendly. Compared with chemical cleaning, it can effectively solve the problems of substrate damage, limited component size, long time and low efficiency, and chemical reagents that are harmful to the human body and the environment.

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