Laser vs. Metal

Marking | Etching | Engraving Last Unicorn Creations can provide laser etching services with quick turns to permanently mark various metals using precision laser technology. We can laser mark (score single lines or outlines) or etch (burn the entire image) on surfaces of aluminium, anodized aluminium, ceramic, brass, chrome, pewter, steel, stainless steel and many other metals. Coated or painted metals have always been easily marked with our laser systems, provided there is a contrast in colour between the two surface outer colours Anodized aluminium products have always been a popular material for laser etching because the laser bleaches the pigment, giving it a nice contrasted mark, without interfering with the anodizing process. Maximum working area is 36" x 24". What is laser Marking? Laser marking mostly refers to laser engraving on metals with the assistance of marking chemicals. As laser heats up the marking chemical, the image is fused onto metallic surface. Laser marking produces a solid matt black colour. Laser marked images on metals are permanent. Weather, chemicals, solvents or salt water do not affect the laser marked details. We can laser mark any vector artworks with precision and intricate details. Laser marking can be done on both metals and non- metallic, industrial plastic, surfaces. Applications: · Award plaques · Company Logos · High-end Promotional Products · Medical Instruments · Restaurant Supplies · Tools · Gifts · Serial numbers · Lot Numbers · Production Codes · ID Matrix Codes · Part Numbers · Tracking Information · Electronic Devices The technique is somewhat technically complex, as a computer system is used to control the movements of the laser head. The technique does not involve tool bits, which contact the material to remove surface material. How does the laser etch? The laser is like a pencil - the beam emitted from it allows the controller to trace patterns onto the surface. The controller governs the direction, intensity, speed of movement, and spread of the laser beam aimed on a surface. The point where the laser beam touches the surface changes the surface of the material under the focal point. It heats up the surface and subsequently vaporize the material, or perhaps the material may micro-explode and flake off the surface. This is how material is removed from the surface to create an engraving. A laser can remove material very efficiently because the laser beam can be designed to deliver energy to the surface in a manner which converts a high percentage of the light energy into heat. What other material is compatible with the laser?  Last Unicorn Creations can offer laser engraving on many types of materials: · Metals We can engrave a variety of metals such as aluminium, anodized aluminium, brass, copper, steel and stainless steel but they must be prepared! · Coated metals Coated metals can be engraved well. Laser engraving metal plates are manufactured with a finely-polished metal, coated with an enamel paint made to be "burned off". · Glass  When a laser is used to engrave on glass, it fractures the glass surface. With the right settings, excellent results can be achieved. · Granite and Marble Granite and marble can be laser engraved with extremely fine details. The depth of engraving can be customized to specifications. When laser hits the surface, it fractures such materials. Engraved images can be filled with paint for better contrast appearance. Read more...
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