Water cooling technology has been widely used electronic, electrical, instrumentation and other industries, the cooling effect is better than the average of air-cooled heat sink, and quiet, no noise, energy consumption is much lower than the air-cooled , so had a good popularization and application. There are many types of water cooling board, which are used in different instruments. The design of water cooling board is not the same, and the materials used are different, and the production process will be different.There are many kinds of production processes of water cooler. This paper mainly introduces the production process of friction stir welding water cooler.

Friction stir welding water cooled process has advantages of flexible design, no obvious solder joints and high reliability, can realize water cold plate processing is very thin, so in the new energy vehicles widely used on power battery cooling, can the whole water cold plate thickness is 5 to 7 mm, meets the requirements of lightweight.The application of friction stir welding technology enables designers to design more flexibly, or to turn thermal designers' inspired designs into products better.In addition, water cooled channel will be easier because of the application of the friction welding process, channel can be designed into a single channel can be designed into multi-channel, or USES the hollow extrusion type welding way, you can achieve rapid mass production, production capacity can be greatly improved.

Friction welding is a method of using the heat generated by the mutual movement and friction of the workpiece's end surface to reach the thermoplastic state of the end, and then forging rapidly to complete the welding. Friction stir welding pipes finished product delivery is completed when the water see solder joints and weld, general friction stir welding was carried out on the products with the same material welding, after welding to complete as a whole, and disposable water pipes, there is no difference between processing and shaping reliability than traditional process welding of water pipes.

Lori attributes friction welding technology of the heat is applied to the water cooling is one of the manufacturer on the products, at the same time was that the friction welding technology is applied to the new energy vehicle power battery PACK cooling water pipes on manufacturers, has a mature water cold plate production process, especially in the friction stir welding pipes production, water production experience quite rich, has been for many car companies or PACK factory production of different types of new energy vehicles power battery PACK cooling water pipes.