Machining

Tools Used

• Manual mill

• Manual lathe

Process Overview

• Machined the external hex profile on the manual mill using an end mill

• Faced and turned the part to size on the manual lathe

• Used a center drill followed by drilling to establish the internal bore

• Bored the inner diameter to final size using a boring bar to improve concentricity and dimensional accuracy

• Single-point cut an external 1-1/8–12 UN thread on a test stock piece to serve as a functional external thread gauge

• Single-point cut the internal 1-1/8–12 UN thread on the lathe and verified proper fit using the externally machined thread gauge

• Deburred all edges and verified final dimensions were within drawing tolerances