Automotive filter and ventilation components—such as cabin air filters, engine air filters, and ventilation ducts—require clean, airtight joints to ensure efficient filtration (filtration efficiency ≥95% for PM2.5) and airflow. These components need to prevent dust, debris, and contaminants from entering the vehicle cabin or engine, while maintaining smooth airflow (airflow resistance ≤10Pa). Traditional welding methods may generate particles that contaminate filters, or produce uneven welds that cause air leakage, reducing filtration efficiency. DaokeDao plastic laser welding produces particle-free welds that ensure clean internal surfaces, preventing contamination of filters and ventilation systems. It creates airtight seams that prevent air leakage (leakage rate ≤0.05m³/h), maintaining efficient airflow and filtration performance. The process is compatible with a wide range of filter materials and plastics (such as PP, PE, and ABS), forming strong, durable welds (shear strength ≥16MPa) that withstand vibration and temperature changes. Our laser systems support complex internal structures and thin-wall parts (wall thickness 0.5-1.5mm), adapting to the diverse design requirements of filter and ventilation components. They ensure high yield rates (≥99.3%) and low rejection rates, helping manufacturers improve product performance, reduce maintenance costs, and enhance vehicle air quality.
