Engine air intake pipe connectors connect air intake pipes, ensuring smooth air intake, requiring good air tightness, high temperature resistance and vibration resistance, adapting to engine high temperature and vibration environment. Traditional mechanical clamping has air gaps, affecting engine air intake efficiency, while adhesive bonding has poor high temperature resistance. DaokeDao laser welding is suitable for high temperature resistant PA and PP materials, forming an airtight weld, with air leakage rate controlled below 0.05m³/h, ensuring stable engine air intake. The weld has high temperature resistance, adapts to engine compartment high temperature (up to 150°C), resists long-term vibration without cracking. The welding process is efficient, with high consistency, suitable for mass production of engine component suppliers, improving engine operation efficiency and reducing fuel consumption.