Technical and economical aspects of laser marking systems are discussed and compared with traditional marking techniques. Laser marking has two main principles: mask or stroke marking. Examples of important TEA CO2 and YAG laser marks and their applications are described. Laser marking is superior in quality and flexibility; it lends itself to automation and integrated production technologies. It is the most cost efficient method of permanent marking, especially in high throughput production lines.
AbstractTechnical and economical aspects of laser marking systems are discussed and compared with traditional marking techniques. Laser marking has two main principles: mask or stroke marking. Examples of important TEA CO 2 and YAG laser marks and their applications are described. Laser marking is superior in quality and flexibility; it lends itself to automation and integrated production technologies. It is the most cost efficient method of permanent marking, especially in high throughput production lines.
Industrial picosecond laser pulses are used to micro‐machine virtually any material with high precision and minimal thermal impact. Best quality is achieved at low energy density near the ablation threshold. Economical throughput is achieved by very high pulse repetition rates. The effective pulse rate also can be increased by burst machining. For high quality with maximum throughput the proper selection of laser and process parameters is significant. Application rules and examples are discussed.
Advantages and construction principles of laser soldering systems are discussed. First results with a production type YAG laser system soldering SMD components are presented: Small and fine grain intermetallic zones, high mechanical strength, component size up to 40 x 40 mm2, soldering speed 28 pads per second.
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