Related Resources: manufacturing

Turning lathe cutting tool forces

Manufacturing Process and Design

Tool forces vary with cutting speed, feed rate, depth of cut and rake angle. Force may be measured experimentally by using a ‘cutting tool dynamometer’ in which the tool is mounted on a flexible steel diaphragm and its deflections in three planes measured by three electrical transducers. Three meters indicate the force, typically of 25 N up to, say, 2000 N. Graphs show typical characteristics

Symbols used:
F_c =cutting force (in newtons)
F_r = radial force (in newtons)
F_f=feed force (in newtons)

Resultant force on tool in horizontal plane

(Newtons)