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PRODUCT CATALOG

Kawasaki Friction Spot Joining (FSJ)

Kawasaki Robotics (USA), Inc.

The increasing demand for high-strength aluminum alloys as an engineering material prompted Kawasaki to develop an efficient method for joining aluminum, magnesium, and other lightweight materials. Friction spot joining (FSJ) is a process that uses force and high speed rotation to generate friction that joins two or more sheets of material in a matter of seconds. To best suit application and flexibility needs, the Kawasaki FSJ system is offered in both stationary and robotic configurations. The Kawasaki FSJ robot system uses a Kawasaki robot equipped with a dual servo motor FSJ gun that can be manipulated similar to a spot welding gun to join materials. 

The Kawasaki FSJ system has many benefits in comparison to spot welding for joining lightweight alloys. First, the system has low initial investment, 50% of a typical resistance spot welding (RSW) system, and there is no need for a water circulation system to cool the servo motor. Second, the FSJ process is highly energy efficient, requiring 5% of the energy in comparison to a resistance spot weld. Finally, the FSJ process does not result in fumes or material expulsion from the joined material.

Friction Spot Joining

Model: FSJ / ZX165


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