Case study Without periodic checking and maintenance, CNC machine tools can lose positioning accuracy and introduce errors over time. Machining complex, high-value airframe components, BAE Systems turned to a wireless ballbar system to provide the machine tool diagnostics data it needed to maximise quality and productivity. Background The manufacture of airframe components for modern aircraft demands precision and consistency. With the lifetime expectancy of a component matching that of the aircraft, production quality and reliability are paramount concerns in metal and composite machining processes. BAE Systems, the global defence, aerospace and security company, produces vital airframe components for the Eurofighter Typhoon, a twin-engine, canard-delta wing multirole combat a

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