![]() Bar codes on plastic with a MOPA marking machine. So, lasers can’t produce similar results on plastic (at the moment). Yet, plastics don’t have the same chemical reactions. The color laser engraving procedure on metals involves annealing them. Can You Do Color Laser Engraving / Marking on Plastic? Steel, chromium-coated metals, and iron are also good candidates for color laser engraving (marking). MOPA fiber lasers can color mark several metals, but color laser marking stainless steel and titanium offer outstanding results. Therefore, MOPA fiber lasers offer precise control over the laser beam to create numerous colors. Revealing different colors mainly depends on changing pulse frequency and pulse width. On the other hand, Q-Switching fiber lasers have a constant frequency, so they can’t engrave colors on metals. This is vital to producing different colors. One significant difference is that MOPA lasers allow the adjusting of the laser beam frequency. They offer more control over the laser beam’s properties. MOPA lasers are a more recent invention than Q-Switch lasers. MOPA Fiber Laser vs Q-Switching Fiber Laser As a result, different colors can be engraved. ![]() These variables control the reaction’s energy and temperature, as well as the various oxides’ concentrations. Numerous colors appear by varying the laser beam’s frequency, pulse width, focal distance, and power. The different metal oxides have different colors. When the laser concentrates its energy on a spot, the ensuing chemical reaction changes its color. How Does MOPA Fiber Laser Color Engraving Work? MOPA fiber laser engraving with color on stainless steel. Lasers can mostly only color metals, with varying efficacy. However, laser coloring has many limitations. Plus, laser coloring has tremendous resolution: it can vary the color in adjacent spots of your design. When possible, laser marking is a brilliant method, and has the widest ability to create different colors. However, many call this process color engraving anyway. The laser merely stains the material’s surface with different colors, retaining its smoothness and texture. The laser, therefore, doesn’t engrave the material by creating cavities. In laser marking, the laser heats the spot until it goes through oxidation and changes color, causing a chemical reaction on the material’s surface. Techniqueīar Code, Tracking Information, Brand Logos Here is a summary of the different color engraving methods and their properties. You can also use laser etching, charring, and laser ablation to get single-color contrast. Alternatively, you can paint engravings manually by color filling or adding color powder. You can use a MOPA fiber laser to color metals and, in part, plastics. Read more: the best fiber laser engravers How Do You Engrave With Color? Laser ablation technique on a Zippo lighter. So, these techniques are excellent for printing QR codes, dates, and other designs. These methods don’t give a color range or much control over the color. MOPA fiber lasers can laser engrave in color.Īlternatively, we’ll explain two color-filling techniques and a technique with powder paint to manually create engravings in color.Įtching and engraving techniques like charring and ablation only produce monochromatic contrast. Finally, laser etching and engraving techniques can attain monochromatic contrast for printing purposes.īut, these techniques have different results and applications.Ĭolor laser marking is the only technique where the laser achieves different laser colors without human labor. Also, you can manually paint designs by color-filling laser engravings or by adding color powders to laser engraving. Yes, color laser engraving is possible with MOPA fiber lasers. We also show you how to use color powder in your laser engravings. ![]() We also explain how to color-fill laser engraved wood, acrylic, or other materials with two distinct techniques. This article explains color laser engraving on metals and plastics. The best methods for color engraving are:Īdding laser engraving color powders is also possible.Ĭolor laser engraving automatically reveals different laser colors on metals, while color-filling laser engravings requires manual painting. How Much Does a Color Laser Engraving Machine Cost?.Can You Add Color to a Laser Engraving?.Alternative: Single-Color Contrast Techniques.Step 2: Fill the Engraving With Color Powder.Laser Engraving in Color Using Color Powder.A Second Method of Color Filling (Wiping).How to Color Fill Engravings (How to Color Fill Laser Engraved Wood, Glass, etc).Can You Do Color Laser Engraving / Marking on Plastic?.MOPA Fiber Laser vs Q-Switching Fiber Laser.How Does MOPA Fiber Laser Color Engraving Work?.
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