575 Каталог KYOCERA 2016 Инструмент режущий станочный Пластины Резцы Фрезы Сверла Стр.K33

Каталог KYOCERA 2016 Режущий инструмент для станков Стр. K33 0575 Lab2u

Comparison of Hole Dia. (f=0.3mm/rev) 1) Comparison with indexable drill 2) Comparison with carbide solid drill Cutting Time (min) (Internal evaluation) 0 10 20 30 40 50 60 70 Cutting Time (min) (Internal evaluation) Q-3 Q&A Drilling deep hole machining using DRC (8D type), dimension variation of diameters has occurred at inlet and far (outlet) side possibly due to deflection. Is there any countermeasure There are some countermeasures as follows to prevent deflection (to improve bite of drill). Countermeasures 1 Increasing the feed rate Increasing the feed rate may keep the processing diameters constant. (Estimated rate: Current rate + 0.03 to 0.05 mm/rev) S55C Vc=80m/min H=112mm f=0.25mm/rev 0.30mm/rev Wet (Internal coolant) SS16-DRC140M-8 DC1400M-SC (PR0315) DRC +14-8D 40 60 80 Drilling Depth H (mm) If increasing the feed rate is not possible because rigidity of machine or clamp is Countermeasures 2 S55C Vc=80m/min f=0.25mm/rev H=112mm Wet (Internal coolant) SS16-DRC140M-3 SS16-DRC140M-8 DC1400M-SC (PR0315) Drilling Depth H (mm) Case Studies Flange Vc=97m/min (n=2,490min-1) H=32mm f=0.3mm/rev (Vf=747mm/min) Wet (Internal coolant) DC1250M-SC (PR0315) S50C SS14-DRC120M-3 Competitor A 3,000 holes/insert 1,800 holes/drill Compared to competitor's drill A, MagicDrill DRC type has reduced burr and reduced more than 10% of the power required. Tool life has also improved greatly. (Evaluation by the user) SCM440 Housing Vc=83m/min (n=2,400min-1) H=32mm f=0.24mm/rev (Vf=576mm/min) Wet (Internal coolant) DC1100M-SC (PR0315) SS12-DRC110M-3 Competitor B 2,400 holes/insert 2,000 holes/drill Compared to competitor's solid drill B, MagicDrill DRC type has greatly reduced preparation time with its easy insert replacement feature. Also, the costs of spare tools for re-grinding has been reduced, and tool life has improved. (Evaluation by the user) K33 Drilling