Общий каталог Sumitomo 2018 - 2019 - страница 423

Flat MultiDrill Coated Carbide Drills for Spot Facing MDF Type New 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 dril- ling in inclined and curved surfaces. Advantages Can be used in a variety of drilling applications thanks to its point angle of 180° Applicable to high-efficiency spot facing, drilling in non-horizontal surfaces such as inclined and Improves cylindrical surfaces and interrupted drilling. It also reduces burrs at hole exits. drilling stability by ensuring Improved machining stability web thickness. Achieves high rigidity by employing RS THINNING, which ensures web thickness on the bottom face. Excellent chip evacuation performance Achieves excellent chip evacuation thanks to its wide chip pocket and high-quality rake face shape. Excellent cutting edge strength Achieves excellent cutting edge strength thanks to optimized cutting edge design. THINNING Expanded lineup of long type An expanded lineup of long type drills with diameters between Ø3,0 and Ø20,0mm that are capable of drilling with an overhang length up to L/D=10. Expanded lineup of types with oil hole Supports internal coolant. For deeper drilling (3D, 5D). Reduction of Burrs at Hole Exit Conventional Work Material: 15CrMo5 MDF general purpose drill Drill: MDF0500S2D (Ø5,0mm 2D) Cutting Conditions: vc = 65m/min, f = 0,12mm/rev H = 10mm, 150 holes, wet Equipment: Vertical machining center Reduces exit burrs by more than half Burrs at hole exit compared to general-purpose drills Burr height: 0,18mm Burr height: 0,44mm Flat MultiDrill MDF type Conventional general type Multi-Drills Applications High-efficient spot facing Hole expansion drilling Drilling in non-horizontal surfaces Interrupted drilling (such as inclined and cylindrical) Long Type Long Type 8 Conventional MDF general purpose drill Cross drilling Pre-tap hole drilling in thin Deep spot facing Avoiding interference with sheets work materials K28