Part Name: Flanged hub prototype

Material: 303 stainless steel

Challenge: To produce a small quantity of a part with a large OD, a large, thin flange, tight tolerances (± .0005) and good surface finishes, from a tough material while removing a large volume of material.

Solution: The tough 303 stainless implies high cutting forces, but the thin flange limited the chucking pressure that could be used, so we designed special fixturing that held the piece securely without warping the flange. The deep groove in this tough material required a very rigid tool holder to maintain the surface finishes required on high-pressure hydraulic sealing surfaces, so we designed and fabricated a special holder for very carefully chosen inserts, and used judicious speeds and feeds.