Abstract
Knowing cutting forces is important for choosing
cutting parameters for milling. Traditionally, cutting
forces are calculated by equation which includes
empirically measured specific cutting forces. In the
article modelling of cutting forces with genetic
programming is proposed, which imitates principles of
living beings. Measurements have been made for two
materials (aluminium alloy AlMgSi1 and steel 1.2343)
and two different types of milling (conventional
milling and STEP milling). For each material and type
of milling parameters, tensile strength and hardness of
workpiece, tool diameter, cutting depth, spindle speed,
feeding and type of milling were monitored, and for
each combination of milling parameters cutting forces
were measured. On the basis of the experimental data,
different models for cutting forces prediction were
obtained by genetic programming. Research shows that
genetically developed models fit the experimental
data.
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