OBRABOTKAMETALLOV Vol. 27 No. 1 2025 technology Fig. 7. Tangential cutting force PZ values as a function of processing time (a) and cutting speed (b) with various MWF compositions applied. Tool feed S = 0.076 mm/rpm. Cutting tool – Spiral drill (HSS). D = 22 mm. MWF consumption – 0.5 l/min a b
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