Method for manufacturing component, processing apparatus, and component

A method of manufacturing a component using a processing device including a plurality of end mills, each of the end mills including a respective bottom edge formed in a curved convex shape and including a respective end cutting edge provided at a corner of the corresponding one of the end mills, each of the end cutting edges being formed in a shape of an arc, wherein a processing target is formed on the component, the processing target including a fillet-shaped portion of the processing target, the fillet-shaped portion being in a shape of an arc having a predetermined radius, and the processing target also including a planar portion that is adjacent to the fillet-shaped portion of the processing target, the method comprising:

• processing a first fillet-shaped portion via one of the plurality of end mills and forming a first planar portion adjacent to the first fillet-shaped portion via the bottom edge of the one of the plurality of end mills so that an unprocessed portion remains on the processing target;
• and
• forming the fillet-shaped portion of the processing target via using the end cutting edge of another one of the plurality of end mills different from the one of the plurality of end mills to remove material from the first fillet-shaped portion in a single pass, such that the component has the processing target formed thereon,
• wherein the end mills are corner-radius end mills, and the planar portion of the processing target and the first planar portion are flat surfaces without curvature or are curved surfaces having curvature.