Automotive sunroof control units manage sunroof opening, closing, and anti-pinch functions, requiring reliable performance in both interior and exterior environments. These units contain motors, gears, and sensors that must be protected from moisture, dust, and temperature fluctuations (-30°C to 80°C). Traditional adhesive bonding requires long curing times and may fail under extreme temperatures, while ultrasonic welding can damage internal electronics. DaokeDao laser welding offers a clean, efficient joining solution for sunroof control unit housings made of ABS and PC. The non-contact process generates no debris or vibration, protecting internal components from damage. It forms a seamless, airtight weld (IP65 rating) that prevents moisture and dust intrusion. With precise energy control, the heat-affected zone is limited to ≤0.4mm, maintaining the unit’s compact design (size ≤70mm×50mm×25mm). Our systems support fast cycle times (7-11 seconds per unit) and easy integration into automated assembly lines, reducing post-processing steps and rejection rates to ≤0.7%. By improving reliability, DaokeDao laser welding helps automakers enhance user experience and reduce warranty claims.
