Engineers at the Pacific Northwest National Laboratory (PNNL) are developing a self-fixturing process that would enable ...

A spinning tool plunges into two pieces of metal, rotating at a high rate of speed. As the tool begins to move, it softens and mixes the metal, creating a powerful weld—one that can securely join ...

A breakthrough achieved at a lab in the United States could bring friction stir welding to assembly lines. The technique involves the use of a spinning tool to generate intense levels of deformation ...

Unlike previous stir welding techniques, this process works on thick sheets of metal. The U.S. military annually spends several billion dollars on fuel, an expense that could be reduced by lowering ...

The typical images of welding—a robotic arm burping sparks or a masked Jesse James hovering over a glowing metal puddle—don’t apply to friction stir welding (FSW). The metal-joining technique was ...