Vehicle crash pad scoring

SCORING FOR AUTOMOTIVE AIRBAG CRASHPAD

Scoring is the process of making grooves that do not completely penetrate the workpiece or performing micromachining that is not visible to the naked eye. It is possible to make grooves only for decoration, but by leaving a very thin thickness without processing, the unique performance and marketability of the product can also be enhanced. Typical examples include easy cut, easy opening, and V cut processing. Laser scoring has the advantage of being optimized for various domains and materials because it minimizes the range of thermal effects generated during processing, not only does it prevent unnecessary material deformation, but also enables precise parameter adjustment.

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Blade scoring

• Downtime due to frequent tool changes
• Difficult to track processing quality
• Limitations on multi-layer material processing and geometry

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Laser scoring

• Maximize machine utilization without frequent tool changes
• Real-time monitoring of machining conditions
• Processing of various materials and material shapes

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Applications

Lasers are used as scoring solutions in various fields such as mobility, food and beverage, electrical and electronics due to their excellent repeatability and precision. The most typical application example is airbag deployment line processing for crash pads. The crash pad not only wraps around the vehicle's instrument panel and driving aids, but also has an airbag inside to protect the occupants in the event of a vehicle collision. Laser scoring performs precise work according to the unique shape of the pad.

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Package EASY TEAR

Various packaging materials, such as polyester, can be opened safely and conveniently by introducing perforations.

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Bending V-CUT

V-shaped grooves are made on the cross section of the plate to make bending and bending of thick materials easier.

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Crashpad airbag line

For the smooth deployment of the airbag, a DOOR line is created by incising the crash pad in the shape of a broken line.

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PCB breakline

Seams are made at regular intervals at the top and bottom so that the PCBs attached to the panel can be separated well.

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A higher level of microscoring

In general, crash pads have a thickness of about 3 to 4 mm to effectively withstand external changes such as cold, moisture, and vibration, so an airbag deployment line must be made using a scoring process. However, improper processing may interfere with airbag operation or impair appearance.

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Reliable high-precision machining

The K2 LASER SYSTEM's invisible scoring system not only performs high-precision tasks in the order of several micrometers, but can objectively verify the reliability of processing quality with sensor data.

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Precise positioning for advanced pads

In the past, pads were attached to separate panels to expose the seams on the outside, but recently they are manufactured in an integrated package for an excellent seamless interior design, and are made of high-quality decorative materials such as leather, foam, and textiles. The K2 LASER SYSTEM scoring system works with a laser in conjunction with a high-performance 3D robot manipulator. High-accuracy positioning prevents material defects due to overburning while moving along the airbag line and achieves excellent exterior quality.

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Conclusion

With many years of accumulated know-how, we have completed a reasonable and optimized system for the crash pad airbag line process. The 10.6 um wavelength high-power laser boasts excellent absorbency to the material and efficiently processes the configured crash pad without any mechanical load. Furthermore, for more precise and immediate control, a synchronized optical sensor measures the remaining amount of energy penetrating the material and performs rapid calibration and correction of processing parameters.

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High power CO2 laser

Laser wavelengths with stable output and quality process multilayer materials smoothly and quickly

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Control feedback systems

Perform accurate process control and quality control based on feedback under a real-time monitoring system

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3D manipulator

Fast and precise position control with a 360-degree transfer system synchronized with a laser optical system

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utility

Maintain consistent processing performance and an optimized work environment from lot to lot with perfect residue removal and dust suppression.