Photonics Dictionary

laser marking

Laser marking is a process in which a laser beam is used to mark or engrave a surface by altering its properties or appearance. This technique is widely used for labeling, identification, and decoration of various materials, including metals, plastics, ceramics, glass, and more. Laser marking provides a permanent and high-precision method for adding information or graphics to a wide range of objects.

Key features of laser marking include:

Contactless process: Laser marking is a non-contact method, meaning there is no physical contact between the marking tool and the material. This reduces the risk of damage to the material being marked.

Precision and detail: Laser marking offers high precision and can produce intricate details, making it suitable for applications where fine and precise markings are required.

Versatility: Laser marking can be applied to a variety of materials, and the process can create different effects, including surface color changes, engraving, and ablation.

Permanent markings: The marks created by laser marking are typically permanent and resistant to wear, making them durable and suitable for applications requiring long-lasting identification.

Speed and efficiency: Laser marking is often a fast and efficient process, especially for batch or serial production, as it does not involve the use of consumables like inks or dyes.

Variety of laser types: Different types of lasers can be used for marking, including fiber lasers, CO2 lasers, and Nd:YAG lasers. The choice of laser depends on the material being marked and the desired effect.

Laser marking finds applications in a wide range of industries, including manufacturing, automotive, electronics, medical devices, and aerospace. It is used for purposes such as serial numbers, barcodes, logos, product labels, and decorative elements on various materials.

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