Каталог Sumitomo сверла и развертки - страница 68

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Drill for Heat-Resistant Alloys SGS Type ■ General Features SGS type drills for heat-resistant alloys employ a sharp cutting edge to reduce heat during drilling (reduced cutting resistance) and provide stable and long tool life. ■ Characteristics · Applications ●Stable and long tool life · Combination of optimised cutting edge design and special grade significantly reduces wear. · Minute honing (edge treatment) amount and special thinning shape reduce cutting resistance. This reduces cutting edge breakage. · Perfect for drilling Ni-based heat resistant alloys (Inconel/Waspaloy/Hastelloy). ■ Series Cat. No. Diameter Drilling Depth Range (mm) (L/D) MDW□□□□ SGS3 Type ø3.0 to 12.0 Up to 3 ■ Performance Comparison of Cutting Resistance (Thrust) Tool Life Comparison Low Resistance [Reduced Load On Cutting Edge] Long Life [No Fracturing or Breakage] 2,000 1,800 Tool SGS Type Comp. A Drill Comp. B Drill Thrust Force (N) 1,600 1,400 1,200 Output Able To Continue After 50 Holes Breakage After 30 Holes Breakage After 5 Holes 1,000 800 J 600 400 SGS Type Company A's Drill Company B's Drill 200 Photo 0 Drilling 8 12 16 20 24 8 12 16 20 24 8 12 16 20 24 Time [s] Tool: ø6.0 Tool: ø6.0 Work Material: Inconel718 Work Material: Inconel718 Solid Cutting Conditions: vc=10m/min f=0.08mm/rev H=8mm (Through) Cutting Conditions: vc=10m/min f=0.08mm/rev H=16mm (Stop Hole) External Coolant External Coolant Special Indexable ■ Application Examples Reamer Comparison of Edge Wear After 30 Holes Brazed Significantly Reduced Flank Wear Others SGS Type SGS Type Able to continue Conventional drill Wear Conventional drill 0 20 40 60 80 100 No. of Holes Tool: MDW0600SGS3 Work Material: Inconel718 (Aeronautic Components) Cutting Conditions: vc=10m/min f=0.06mm/rev H=3mm (Through) External Coolant J46