In-situ interlocking of metals using additive friction stir processing

This invention describes a method for joining different metal parts using a specialized tool. The tool spins and moves across a metal piece that has grooves cut into it, feeding a second metal material into these grooves. This process heats and deforms the filler material, causing it to flow and mechanically interlock with the grooves, creating a strong bond. The claims specifically detail substrates with multiple grooves of particular shapes, such as those with parallel or sloping sidewalls.

Why it matters: Filed before significant advancements in robotic precision and real-time process control. These improvements could now make the complex additive friction stir process more reliable and scalable for industrial use.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedAdditive friction-stir tool, precise motion control

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