Automotive center console armrests provide arm support and storage, requiring seamless appearance, firm structure, and reliable sealing, adapting to cockpit temperature changes and frequent use. Traditional ultrasonic welding leaves visible weld marks, affecting interior aesthetics, while adhesive bonding has poor durability. DaokeDao laser welding realizes seamless welding of ABS and PC armrest housings, with no visible weld marks, smooth surface, and consistent texture with the cockpit. The weld has high toughness, withstanding repeated pressure (≥50,000 times) without cracking, and meets IP65 protection grade, blocking dust and moisture. The non-contact process generates no debris, suitable for clean interior assembly workshops, no post-processing required. The equipment supports curved surface welding, cycle time 9-12 seconds per unit, helping automakers improve interior refinement.