Page:Practical Treatise on Milling and Milling Machines.djvu/196

190 Milling Bearing Surfaces and Splitting Ring

This operation presents an example of light gang milling on work of an interesting character. The ring is required to have two flat bearing surfaces, one at each side of the projection on the top, and to be split midway between these bearings. All three operations are performed simultaneously by the method shown.

The ring is fastened to a knee by means of a nut and large washer in the centre, and clamps at each side prevent the piece from opening when cut through. When these pieces are milled in quantities a fixture is employed to hold them.

Two side milling cutters and a slitting saw comprise the gang.