Page 196 - Threading_Handbook
P. 196
3.12 Depth per Pass and Number of Radial Passes
THREAD MILLING The parameters of depth per pass and number of passes have a very important role in
thread production. These parameters have a direct effect on cutting edge wear, tool life,
thread surface quality, and thread production stability. The depth per pass and number
of passes parameters depend on the type of equipment, tool overhang, machine stability,
workpiece material, cutter geometry and the thread depth required.
Number of Radial Passes
In order to produce a thread in some cases, one radial pass is sufficient, but in some cases
a number of radial passes is required. The table below presents ISCAR's recommendations
for the number of radial passes depending on the material and lead.
196 ISCAR
