An April, 2013 event Makino hosted at its U.S. headquarters in Mason, Ohio highlighted solutions for effective production of aerospace structural components. The event featured a number of machining demonstrations of both aluminum and titanium components.
One example of what it calls “right size” machines for small structural components is the a61nx-5E. This is a 24,000-rpm five-axis horizontal machine built on a 500-mm HMC platform. At the event, it was machining an aluminum landing edge segment, demonstrating one-shot wall finishing, high speed floor finishing and material removal rates as high as 300 cubic IPM. The machine features an atypical pallet changing system for its twin, direct-drive rotary tables that brings effective ergonomics to five- axis machining. This video shows a pallet change whereby a vertically fixtured pallet is removed from the workzone, rotated 180-degrees and presented horizontally to an operator. At the same time, the opposite pallet on the opposite rotary table is loaded into the machine.