Общий каталог Sumitomo 2019 - 2020 - страница 887

Vickers hardness (HV) Thrust (N) Arc shaped lipStraight lip Chips curl and break at the centerChipsextend upward OthersBrazedReamersIndexableIndexableInsert TypeHead TypeSolidDrilling MultiDrill Series MDM Type ● New cutting edge design that emphasises sharpness for good chip control ● Narrow margin and large back taper Reducing the contact area with the workpiece, suppressing temperature rise at the margin MDM Type Competitor's Product A Back Taper Back Taper Smaller surface in contact with margin Larger surface in contact with margin J MDM Type Competitor's Product A MDM Type Work Material : SUS304 Machine : BT30 vertical machining centre Tool : MDM 0400S04H05 (ø4.0mmx5D) Cutting Conditions : vc=80m/min, f=0.10mm/rev, internal coolant supply (water soluble) ● Suppressing work hardening on drilled hole wall Reduces cutting load, reducing damage to the drill and increasing the life of the reamer and tap used in post-processing Hole entrance 400 Measurementposition 350 MDM Type 300 Competitor's Product B 250 Work Material : SUS304 Base of hole 200 Machine : BT30 vertical machining centre 150 Tool : MDM 0800S08H05 (ø8.0mmx5D) 0 0.025 0.05 0.1 0.15 0.2 0.3 0.4 0.5 0.75 1 Cutting Conditions : vc=80m/min, f=0.20mm/rev, H=40mm (through), Distance from inner wall of hole (mm) internal coolant supply (water soluble) ● New grades ideal for stainless steel and exotic alloy drilling ACT70 High HX TypeGS/HGS Type Super multi-layered TiAlCrSi · Ef ciency· Thrust MDM TypeCoating MDE Type Hardness (HV): 46GPa ● NX CoatingMade with AbsotechTM technology Oxidisation Starting Temperature: 1,100°C Low High-speed steel powder drill for high quality, high hardness, Exotic Aloy Stainless Steel Aloy Steel Carbon Steel Cast Iron Die steel high strength and excellent wear Sharper Edge Strong-edge Type resistance and thermal resistance. Highly Adhesive Layer ● New coating reduces margin wear ● Reduces thrust for stable drilling from the entrance to the exit of the hole MDM Type Conventional Tool MDM Type Competitor's Product 2,800 2,400 2,000 1,600 1,200 800400 Stable Unstable at entrance of hole 0 Work Material : SUS304, Machine: BT30 vertical machining centre Work Material : SUS304, Machine: BT30 vertical machining centre Tool : MDM 0800S08H05 (ø8.0mmx5D) Tool : MDM 0800S08H05 (ø8.0mmx5D) Cutting Conditions : vc=80m/min, f=0.20mm/rev, H=40mm (through), Cutting Conditions : vc=80m/min, f=0.20mm/rev, H=40mm (through), internal coolant supply (water soluble) internal coolant supply (water soluble) J27