Abstract:A special processing equipment for tube and fin heat exchanger was described.With the equipment,aluminum foil and copper were expanded,flared,flanged to form evaporator and condenser of air conditioner.Replacing the traditional hydraulic power,the whole system was driven by a servo motor.Digital servo control technology was used to integrate brass expanding,flaring and flanging processes in one.The production efficiency is improved,product quality is ensured,brass dosage is saved.While brass expanding,flaring,flanging process were analyzed.