How are bimetallic joints manufactured?
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How are two different metals combined together?
Currently, the steel-aluminum joints imported are mainly from two brands: French T+C and Japanese Asahi Kasei. The steel-aluminum joints produced by French T+C use friction welding, while those made by Asahi Kasei employ explosion welding. French T+C’s steel-aluminum joints are recognized worldwide as having the best quality among dual-metal joints, and they are also the most expensive. The lead time for delivery is typically at least two months. Due to their longer length, these joints require lower standards in terms of welding. The joint end face length of Japan’s Asahi Kasei is shorter, and its price is slightly lower than that of France’s T+C; however, it is necessary to control the current and the rate of temperature increase during welding, otherwise cracks may occur.