This might be the smartest Way to weld metal... 😮

I first thought they were just grinding two metal pieces together for no reason, then I found out this is friction welding. One side can spin at over 3,000 RPM while pressure forces both ends together. The heat comes from friction alone, often pushing the surface past 1,000°C without fully melting the metal. That squeezed ring you see is excess softened material being pushed out. The wild part? This method can create joints stronger than some traditional welds. It’s used in car axles, aircraft parts, and tools. Would you trust a rocket part made this way?
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Видео This might be the smartest Way to weld metal... 😮 канала Chris Steven