ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, cilt.48, sa.-, ss.12569-12585, 2023 (SCI-Expanded)
In this study, the machinability of test pieces obtained from two different white cast irons, NiHARD-4 and HCWCI, were
investigated by boring method, a machining process. The impacts of cutting parameters on cutting forces were identified.
Analysis of variance was used to determine the effect ratios of the cutting parameters. Moreover, Taguchi analyses were used
in the experiments to examine the impacts of cutting parameters on cutting forces. Considering the results in terms of dry
and wet test conditions, it has been revealed that the cutting forces such as Fc, Fr and Ff of HCWCI material are lower than
NiHARD-4 material in all test conditions. In dry cutting, high cutting speed and low feed have decreased the cutting forces.
In wet cutting when the cutting speed has increased, Fr and Ff have increased. In terms of the cutting parameters, it was found
that the most impact parameter on Fc is feed rate, the most impact parameter on Fr is material and the most impact parameter
on Ff is cutting speed in dry cutting. In wet cutting, the most effective factor on Fc is feed rate, whereas the most effective
factor on Fr and Ff is the material. Consequently, it can be said that to lower the cutting forces is required to reduce the feed
rate and raise the cutting speed when NiHARD-4 and HCWCI materials are machined by boring operations with CBN inserts.