Definition of marking laser systems

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Photonics Dictionary

marking laser systems: Marking laser systems are advanced devices that use laser beams to create permanent marks, patterns, or engravings on various materials. These systems are widely employed in industrial, commercial, and artistic applications to mark products with information such as serial numbers, barcodes, logos, and other identifiers. The laser marking process is known for its precision, durability, and ability to produce high-quality marks on a variety of materials, including metals, plastics, ceramics, and more.

Laser source:

Fiber lasers: Known for high beam quality, efficiency, and longevity. Suitable for marking metals and other hard materials.

CO2 lasers: Commonly used for marking non-metal materials such as wood, glass, and plastics.

Lasers: Versatile lasers used for marking metals, ceramics, and some plastics.

Beam delivery system:

Galvanometer scanners: Mirrors that rapidly direct the laser beam to precise locations on the material.

Focusing optics: Lenses that focus the laser beam to a fine point for high precision marking.

Control software:

Design software: Allows users to create and edit text, images, and other graphics to be marked.

Control algorithms: Manage the movement and operation of the laser for accurate and consistent marking.

Workstation/enclosure:

Safety enclosures: Protect operators from laser radiation and ensure safe operation.

Positioning systems: Hold and position the workpiece accurately under the laser.

Types of laser marking:

Annealing: Creates marks on metals through localized heating, changing the color of the surface without removing material.

Etching/engraving: Removes material from the surface to create deep, durable marks.

Foaming: Used mainly on plastics, it creates raised marks by causing the material to form bubbles.

Ablation: Removes coatings from surfaces to reveal underlying material, often used for marking painted or coated surfaces.

Color change: Alters the color of the material by changing its molecular structure, commonly used on plastics.

Applications:

Industrial manufacturing: Marking parts with serial numbers, barcodes, and QR codes for traceability.

Branding: Engraving logos and brand names on products.

Component labeling: Marking electronic components and other small parts with identification codes.

Automotive: Engraving parts with identification numbers for traceability and quality control.

Dashboard and control panel marking: Marking symbols and text on automotive interior components.

Medical devices: Marking surgical instruments and medical devices with identification codes and manufacturer information.

Implant marking: Creating marks on medical implants for identification and traceability.

Consumer goods: Custom engraving on items like jewelry, electronics, and gifts.

Brand protection: Marking products with unique identifiers to prevent counterfeiting.

Electronics: Marking printed circuit boards with identification codes and component labels.

Component marking: Engraving electronic components with part numbers and manufacturer information.

Packaging: Marking packaging with expiration dates and batch numbers.

Branding: Engraving logos and brand names on packaging materials.

Advantages:

Precision: High accuracy and detail in markings.

Durability: Marks are resistant to wear, corrosion, and fading.

Speed: Fast marking process suitable for high-volume production.

Versatility: Can mark a wide range of materials and shapes.

Non-contact process: No physical wear on the marking tool and no damage to the material.

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