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Airplanes have nearly demanding requirements for safety, so in the aviation industry sector, no matter production or maintenance, the first thing that comes to mind for each process improvement is not cost but safety.
Aluminum alloy, as the main structural material of the space shuttle, is widely used in key parts such as spacecraft skins, propellers, fuel tanks and landing gear struts. Aluminum, with copper as the main alloying element, is mainly used to produce large aircraft skin components due to its high strength, high heat resistance and good processing performance. Aluminum exposed to air in the surface will naturally form a layer of uneven and non-continuous oxidation film, in the component re-coating, welding must be thoroughly removed before, otherwise it will affect the coating bonding force, weld quality.
In the application of aviation aluminum alloy surface cleaning, but also to prevent damage to the aluminum alloy surface anodic oxide film, to ensure that the laser cleaning at the same time to protect the aluminum alloy surface anodic oxide film. In the large area cleaning, to meet a certain cleaning efficiency is also a prerequisite for production applications. Cheng Jing laser laser cleaning machine can be used in aerospace applications in various scenarios, the customer can be based on different needs can be matched with the appropriate laser cleaning machine models.
Different from the traditional cleaning process, laser cleaning completely open up a new way of thinking about industrial cleaning technology, is a new type of green technology, can be applied to most of the aerospace aluminum alloy materials before welding surface and parts of the cleaning. In the effective removal of the object surface rust, oil, film, oxide, paint and other pollutants at the same time, more will not damage the substrate, both non-polluting, non-consumables, optional precision cleaning, cleanliness and other advantages.
At present, for the rolled aluminum alloy parts generally use chromic acid, sulfuric acid, hydrofluoric acid mixture to remove the surface of the oxide film, and die casting generally use nitric acid to remove the main, but the chemical cleaning methods need to be manually involved, but also cause pollution to the environment, the cleaning quality is also very difficult to ensure.
In recent years, laser cleaning has become one of the mainstream directions of cleaning technology due to its wide applicability, processing accuracy and environmental protection of the cleaning process, and has been widely used in the industrial links before and after welding and surface coating removal. Based on this, the use of laser cleaning as a treatment method for aluminum alloys before spraying and welding is an effective means.
