546 Каталог ISCAR 2017 Вращающийся режущий инструмент и инструментальная оснастка Стр.542

Каталог ISCAR 2017 Ротационный инструмент Стр. 542 0546 ENG Lab2u

INDEXABLE DRILLS USER GUIDE ISCARDR-DH DR-DH drills can be used with any type of adaptation. However, concentric adapters such as hydraulic chucks are advantageous for better runout. When machining high temperature alloys or applying very high machining loads, it is advisable to use strong gripping adapters such as: side lock adapters, power / hydraulic chucks In case of chip formation or chip evacuation problems, the following sequence is recommended: Reduce cutting speed by 10% Increase internal coolant pressure Apply a pecking cycle Interrupted cut will have a direct influence on hole accuracy, quality and drill life. (Sometimes even tool breakage can occur). Double-ended Pad Worn support pads provide poor surface finish in a drilled hole. In this case, pads should be rotated or replaced. Rotate when wear shows on the back side of the pad DR-DH Machining Recommendations ISO Material Condition Tensile Strength Rm N/mm2 Hardness HB Mtl. No. Cutting Speed vc m/min Feed mm/rev 1 Non-alloy steel, cast steel, free cutting steel 0.1 - 0.25 %C Annealed 420 125 100-150 0.10-0.25 0.25 - 0.25 %C Annealed 650 190 2 0.10-0.25 0.25 - 0.25 %C Quenched and tempered 850 250 4 80-150 0.15-0.30 0.55 - 0.80 %C Annealed 750 220 0.15-0.30 0.55 - 0.80 %C Quenched and tempered 1000 300 0.15-0.30 Low alloy steel and cast steel (less than 5% alloying elements) Annealed 600 200 6 0.15-0.30 Quenched and tempered 930 275 7 70-120 0.15-0.30 1000 300 8 0.15-0.30 1200 350 9 0.15-0.30 High alloy steel, cast steel and tool steel Annealed 680 200 10 80-150 0.10-0.25 Quenched and tempered 1100 325 11 70-120 0.10-0.25 K Grey cast iron (GG) Ferritic/pearlitic 180 15 180-300 0.18-0.35 Pearlitic 260 16 0.18-0.35 Nodular cast iron (GGG) Ferritic 160 17 150-250 0.15-0.30 Pearlitic 250 18 0.15-0.30 Malleable cast iron Ferritic 130 19 0.15-0.35 Pearlitic 230 20 0.15-0.35 542 ISCAR