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Laser cleaning of spot welds and oxide layers

Laser cleaning removes lubricants, black and non-ferrous metal impurities on the metal, cleaning makes the quality of welding and brazing seam high, and the welding seam can be seen after the welding class is cleaned. It is suitable for cleaning the welding surface of steel and aluminum, as the pretreatment of the welding surface, that is, the cleaning after welding. Applications include the automotive industry, precision tool production, shipbuilding and other industries.

Laser cleaning machines are widely used in bright cleaning of various stainless steels to remove various types of oil stains, rust, oxide scale, welding spots and other dirt, and the surface can be restored to the original stainless steel color after treatment.

Laser cleaning welding spot and oxide layer operation process:
Small workpieces can be cleaned automatically. The specific cleaning time is related to the thickness of the oxide scale. Please test the specific value in production.
Large workpieces can be designed as a slide-type platform for cleaning.
For the more complex parts of the workpiece, hand-held operation and cleaning can be carried out.
The above is the detailed information of the laser cleaning machine to remove the oxide layer

Solder spot and oxide layer traditional cleaning
Pickling, shot blasting, sanding, etc. However, these methods not only pollute the environment, but also are inefficient, labor-intensive and time-consuming, resulting in a waste of human resources.

There is usually a layer of scale and rust on the surface of the steel. The oxide scale is the oxide produced by the contact of the steel with the air at high temperature during the rolling process. The oxide scale is gray-black and covers the surface of the steel. Rust layer is a substance containing oxides and water molecules, which is yellow in color and also exists on the surface of steel. Scale and rust are very harmful to steel. Severe scale and rust can weaken the load-bearing capacity of structural parts. The general thickness of crane beams, columns and other structural parts is about 6-10mm, and the weakening of the cross-section of the components by oxide scale and rust cannot be ignored. The presence of oxides and rust on steel structures can degrade the quality of painted steel structures. If the paint is sprayed directly on the oxide scale or rust, the combination of the oxide scale and the steel surface is very fragile. For example, the elastic deformation, thermal expansion and contraction and collision of the stressed components will cause the oxide scale and rust to fall off. It also falls off and loses its protective effect.

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