Here, the system was used to machine away excess material that covered the vents on a nickel-alloy turbine engine casting. The casting pattern is a wax-welded assembly of doublet segments, so there is considerable positional variation within the ring. The intelligent part positioner first locates the airfoil’s angular position, then the robot measures its radial position and height with the cutting tool. Machining commences in this new datum reference, where the amount of excess material is measured and a precise contour is created.
In this video, the robot loads the part in the fixture and uses two different size burs to clear the metal around the trailing edge window.