![]() ![]() ![]() It is Possible to Remove a Material in a Highly Selective Way To successfully remove a layer from a given material, the energy transferred by the laser beam must be above the ablation threshold of that particular material. In other words, each material has a specific ablation threshold. ![]() Now, every material has different properties and thus different molecular bonds. You can shoot the laser beam a thousand times but as long as the energy is below the ablation threshold of the material you’re working with, nothing will ever be removed. Even if you throw the ball a thousand times, you will always fail. If you don't throw it high enough, it will never make it over to the other side. In less technical terms, you can imagine that the layer to be removed is simply vaporized by the laser beam.Ī simple way to grasp the importance of the ablation threshold is to compare it to throwing a ball over a wall. When the beam hits the surface, molecular bonds in the dust or rust layer are broken and ejected from the substrate. This is the process behind all laser cleaning applications. Laser ablation occurs when a material layer or a coating is removed with a laser beam. If you are skeptical about these claims regarding laser technology, keep reading for the key facts about what a laser does when removing contaminants and coatings. In some cases, paint removal by sandblasting can damage the metal underneath.ĭealing with these problems usually comes at a significant cost, but laser cleaning is changing this: it is a cost-effective solution that reduces cleaning times and maintenance. Oxide removal may involve hazardous chemicals specific to each material that needs to be removed. Rust removal can be time and labor consuming. Traditional industrial cleaning methods are often seen as tedious (and for good reasons). Laser cleaning requires a pulsed fiber laser (typically 50 watts or more). Because of its efficiency, it is being used in an increasing number of applications. Laser cleaning is an eco-friendly process used to remove rust, paint, oxide and other contaminants from metal surfaces. ![]()
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