REFRACTORY METAL CORE FINISHING TECHNIQUE
FIG4 illustrates one exemplary finishing system for performing a finishing operation on a RMC 
The third finishing operation 82 may be a robotic machining process. One example of a robotic machining process is illustrated in FIG4. The third finishing operation 82 may round break edges of the third portion P3 of the RMC samples 74, in this embodiment. Of course, other operation besides harperizing and robotic machining may also fall within the scope of this disclosure. FIG4 schematically illustrates an exemplary robotic machining system 100 that can be used to perform a finishing operation on a component, such as an RMC 60. In one embodiment, the robotic machining system 100 is utilized to round break edges that exist on the RMC 60. However, this disclosure could extend to other applications.
schematic
100
robotic machining system
112
surface
102
robot
108
one sensor
106
arm
60
RMC
114
general instructions
['1. A refractory metal core (RMC) finishing method, comprising: performing a plurality of finishing operations (78,80,82,84A,84B) on a plurality of RMC samples (74); analyzing one or more properties of at least a portion of the plurality of RMC samples (74); and selecting a combination of finishing operations (78,80,82,84A,84B) for generating an RMC (60) having desirable properties for manufacturing a part free from defects, wherein the plurality of finishing operations include at least two of harperizing (78,80), robotic machining (82), and etching (84).', '3. The method as recited in claim 1 or 2, wherein the one or more properties include at least break edge sharpness and surface finish.']