Laser marking is a marking method that uses a focused laser beam to alter the surface of a target. This manufacturing technique creates permanent identification marks on surfaces using focused light to alter material properties without removing substantial amounts of base material.
The laser beam is emitted by an oscillator and scanned using a mirror (known as a scanning mirror), and a focusing lens is then used to focus the beam on the target and mark it by altering the surface. Because laser marking involves using light to change the target surface, this method is more resistant to abrasion than ink-based marking, and the marking does not fade over time.
Unlike alternative marking methods, a laser marking machine uses controlled energy to alter surface characteristics. The beam creates marks by oxidation, annealing, or a little bit of material removal, depending on the settings. Because of its adaptability, it can be used for both decorative and industrial purposes.
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Engine parts, transmissions, and safety components are tracked by automotive firms via laser marking. Over the course of a vehicle's life, these permanent codes aid in quality control and recalls.
Medical device producers want precise, safe branding for surgical instruments, implants, and equipment. Even after sterilization, laser marks remain readable and comply with strict medical rules.
Electronics manufacturing uses a laser machine for marking to label circuit boards and tiny components.
This brief list of examples doesn’t scratch the surface of where laser marking systems are used. Nevertheless, the points above show how diverse the technology’s applications can be. Because laser markers can work with many materials, it’s easy to see why the technology is relevant to almost any product. While alternative methods have been able to accomplish some impressive feats in manufacturing, the world is demanding change.
From production quality to traceability, consumer satisfaction, laws, and regulations, manufacturers are being forced to adapt to changing times. This is for the better in more ways than one, as learning how laser marking works will lead to better efficiency, cost savings, employee satisfaction, consumer retention, and more.
The 3-Axis Hybrid Laser Marker MD-X Series combines the strengths of a conventional fiber laser with those of a YVO4 system. Fiber lasers are designed for long service life and high output power for high-speed marking and deep engraving applications. YVO4 lasers are designed for high quality, delicate marking and increased depth of focus for flexibility. Together, these lasers create the MD-X with high peak power and a short pulse laser.
Combining these 2 marking methods creates a laser that is powerful enough to meet stringent cycle time requirements, but also robust enough to achieve quality markings on any metal. Paired with KEYENCE's 3-Axis control, full field auto-focus, and automatic position adjustment, the MD-X Series is ideal for any metal marking need.
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Whether it is for data matrix code identification marking of a component, for function-related markings on speedometers and shower heads or for customization of utility objects such as ID cards or cosmetic articles, their versatility is what distinguishes laser marking procedures above everything else.
If that was not enough. Laser marking meets the more stringent demands on traceability and raw materials, for forgery protection and customized products. Laser marking can even satisfy the request to make a component its own storage medium for the Smart Factory.
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