Page:Practical Treatise on Milling and Milling Machines.djvu/173

Rh Practical Treatise on Milling and Milling Machines p167.png Cutting Spiral Teeth in Milling Cutter

This operation shows the arrangement for cutting teeth in a right-hand spiral milling cutter.

The work is 6 inches long and 3 inches in diameter, and an angular cutter 3 inches in diameter is employed. An angle of $11 1⁄4$° is desired, and the saddle is accordingly set to that angle and the head is geared to give a lead of 48".

The work is mounted on an arbor that is dogged to the spiral head spindle, and care is taken that there is no lost motion between the spindle and work.