Titanium is a high-quality material that is used in (dental) medical technology for implants, in the automotive sector for screws or valves, and for many other applications. It is usually marked in black by laser annealing, while colored laser markings are possible but less durable.
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In order to increase patient safety, reusable medical parts must be provided with a UDI code (UDI – Unique Device Identification) which remains permanently legible even with heavy use and frequent cleaning. But also beyond legal requirements, manufacturers and users employ part markings for a reliable traceability. That’s why UDI codes or other labels can be found on almost all instruments, devices and accessories in medical technology.
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Laser marking is not only used to label cosmetic glass containers, aluminum tubes or plastic bottles with serial numbers or expiry dates. Marks, which then have more decorative than informative purposes, can also be applied directly on colored make-up paint.
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Aluminum is often anodized, i.e. provided with a ceramic-like oxide layer to protect the material from abrasion or natural oxidation. The layer also has a decorative character, since it can be anodized in many colors.
CO2 or fiber lasers are suitable for labeling the anodized surface. Classically, the CO2 marking laser creates a bright lettering (by bleaching), while fiber laser systems mark dark as well as bright. In both cases, the effect brought about by the laser is a color change.
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Small defects in a ball bearing are often difficult to detect, e.g. if single rollers are missing , wrongly mounted, or if a component is of a different size. If the undesired part is then labelled with a laser marker, this causes unnecessary and relatively high costs. FOBA’s camera-based marking solution offers an economical solution that integrates part detection, marking and validation of the marked characters in a single, safe process.
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Anodized aluminum appeared to be the perfect material for the FOBA application lab-team to create this year’s Christmas tree decoration. The glittering stars now contribute to the brilliant appearance of the fir tree in the entrance foyer at FOBA’s Selmsdorf headquarters.
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Hidden on the inside of a bottle cap you will often find laser-marked characters and codes, e.g. production data. An end-user might be much more interested to look “under cover” once there is a code to be found for participation in a sweepstake.
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With the beginning of the cold and dark season, the heating needs to be turned on and the lights burn longer. It might be worth to take a closer look and discover how many of the operating elements inside the house are labelled with a laser mark.
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For high-quality labeling of cardboard or packaging cartons, the marking field can be coated with a laser-sensitive lacquer. The additives contained in the paint react to the laser light with a color change. This results in high-contrast markings, usually in black on a bright surface, but also in white on a dark background.
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The handling of plastic contact lenses can be simplified if they are laser marked. This helps to avoid confusion of left and right and you can tell before inserting whether the lens is wrongly inverted. Vision is not affected by the marking, as it is located in the edge area of the lens.
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