Can nitinol sheets be welded?
Yes, Nitinol sheets can be welded, but the process is challenging due to their unique properties. Specialized techniques, such as laser welding, resistance welding, and TIG welding, are typically used. Care must be taken to control the heat input and cooling rates to maintain the material’s shape memory and superelastic properties. Improper welding can lead to changes in the crystal structure, affecting the performance of Nitinol. Pre-welding and post-welding heat treatments are often necessary to restore the material's properties. Expertise and precise control are essential for successful welding of Nitinol sheets.