Брошюра Tungaloy новая продукция - страница 169

Holemaking S TA N D A R D CUTTING CONDITIONS ISO Workpiece material Brinell hardness Cutting speed Feed: f (mm/rev)(HB)Vc (m/min)ø6 ~ ø9.9ø10 ~ ø16 Grey cast irons FC300, etc. ~ 200 60 - 120 0.2 - 0.8 0.3 - 1 250, etc. Ductile cast irons FCD450, etc. ~ 300 60 - 120 0.2 - 0.8 0.3 - 1 450-10S, etc. - The cutting parameters shown in the table are a starting guideline. Values should be varied depending on the power or rigidity of the machine. Optimum conditions should be selected depending on the actual chip control or damage on edges. - When using the smaller diameter tools in each range, set the feed “f” to the lower values. - When drilling with a depth deeper than L/D = 3, a pecking cycle or dwell operation should be considered depending on the actual chip control. Tungaloy 169