Каталог Sumitomo сверла и развертки - страница 102

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SEC-MultiDrill SMD Type (Structural Steel) MB Type Ideal for Drilling Rolled Steels for Structural Weldments (single or stacked plates) X-Type Thinning ■ Application Examples DEX Coating MB Type for Good chip control structural steel Excellent fracture resistance and chip management Exclusive Edge for Structural Steel Unique wide and smooth flute shape significantly improves chip management and evacuation. New J-grooved Flute SM490YB Directs coolant to cutting c=87m/min, =0.29mm/rev edge even during MQL drilling Reduces shoulder chipping caused by flapping work. Center Oil Hole Elongated chips Comp. Drill Robust Substrate & Reinforced Edge Treatment 150° Point Angle Improved surface finish of flute greatly improves chip evacuation Highly Polished Flute Surface SM490YB c=87m/min, =0.29mm/rev ■ MB Cutting Distance Comparison Case Current Tool Tool Life Comparison (Cutting Distance) Cutting Conditions Compared to current tool life Comp. A Competitor's Product A 17m 2.5x tool life =46m/min c 1 Indexable Head =0.35mm/rev J Model MB 42m Coolant：MQL 1.7x to 3x Longer Tool Life Drilling Competitor's Product B 50m 1.7x tool life =56m/min c Comp. B 2 =0.30mm/rev Indexable Head MB 87m Coolant：MQL Solid 3.0x tool life Competitor's Product C 32m c=54m/min Comp. C Special 3 =0.30mm/rev Brazed Head MB 95m Coolant：MQL Indexable Tool Cost Reamer Comp. D Competitor's Product D 70m 1.7x tool life =60m/min c Brazed 4 Indexable Head Model MB =0.30mm/rev 120m Coolant：MQL Huge Potential Savings Others ■ Recommended Cutting Conditions MB vc: Cutting Speed (m/min) f: Feed Rate (mm/rev) Rolled Steel for Welded Structures Rolled Steel for Welded Structures Rolled Steel for Welded Structures Rolled Steel for Welded Structures Work Material SS400 SM490 SM520 SM570 Drill diameters Cutting Min. - Optimum - Max. Min. - Optimum - Max. Min. - Optimum - Max. Min. - Optimum - Max. DC (mm) Conditions ø24.5 c 60-70-80 55-65-75 55-65-75 55-65-75 to ø26.7 0.20-0.30-0.40 0.20-0.30-0.40 0.20-0.25-0.35 0.20-0.25-0.35 J80