Каталог Sumitomo сверла и развертки - страница 56

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Flat MultiDrill MDF Type ■ General Features The flat multidrill MDF type is a solid carbide drill that can be used for various purposes including high-efficiency spot facing and drilling on inclined or curved surfaces. 180° ■ Characteristics and Applications ● Applicable to various types of drilling thanks to a point angle of 180° Applicable to high-efficiency spot facing, drilling in non-flat surfaces such as inclined and cylindrical surfaces, and interrupted drilling. Also reduces burrs at the hole exit. Improves drilling stability ● Improves machining stability by ensuring web thickness Achieves high rigidity by RS THINNING, which ensures thick web at the bottom. ● Excellent chip evacuation Achieves excellent chip evacuation thanks to the wide chip pocket and a high-quality rake face shape. ● Excellent cutting edge strength Achieves excellent cutting edge strength through optimized cutting edge design. ● Drills with longer shank Lineup of ø3.0 to 20.0mm drills with longer shank, for drilling with long overhang up to L/D=10. ● Drills with oil-holes Achieving deeper drilling with internal cooling. ■ Reduction of Burrs at Hole Exit MDF Type Conv. general-purpose drill Work Material : SCM415 Tool : MDF0500S2D (ø5.0mm 2D) Cutting Conditions : vc=65m/min, f =0.12mm/rev, H=10mm, 150 Units, Wet Equipment : Vertical Machining center (BT40) J Reduces burrs Burr height：0.18mm Burr height：0.44mm Burrs at Hole Exit Flat MULTIDRILL MDF Type Conv. General-purpose drill Drilling ■ Application Solid 1 2 3 4 Special Indexable Reamer Brazed Others High-efficiency spot facing Hole Expansion Drilling Drilling in non-horizontal surface Interrupted drilling (inclined surface, cylindrical surface, etc.) 5 6 7 8 MDF Type Conv. dril Long Type Long Type * Prepared hole of same * Prepared hole of same diameter is recommended diameter is recommended Cross drilling Pre-tap hole drilling in thin sheets Deep Spot Facing Avoiding Interference With Work Materials J34