Каталог Sumitomo сверла и развертки - страница 66

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Super MultiDrill WGS Type ■ General Features Super MultiDrill WGS type features a tuned J flute that improves chip size when machining thin sheets. Sharp edge minimises hardening from drilling. Special double margin design gives stable drilling precision. ■ Characteristics · Applications Super MultiDrill WGS type features J flute (groove shape) specially adjusted for thin sheets. Employing a double margin ensures stable drilling precision. Special Double Margins Special Cutting Edge Design Optimised Groove Shape ■ Applications < Typical Automotive Components > · Bearing Hubs (Inners/Outers) · Knuckles Max. 1.5D · Differential Rings · Bolt Holes For Flanged Automotive Components Thin-Sheet Drilling (Thickness of 1.5D or Less) J Drilling ■ Performance ●Slowed Hardening of Work Surface from Drilling Inner Wall Hardness (Hv) Criteria Conventional drill WGS Type Work Material: S53C Solid 400 Cutting Conditions: vc=70m/min f=0.2mm/rev Special 500 pcs H=13mm 1,000 pcs Indexable 300 Reamer Output (pcs) 0 500 1,000 Brazed ●Stability Of Oversized Drilled Holes ●Smaller Chip Size Others 0.05 Entry Middle Exit 0.04 0.03 0.02 0.01 0.00 3 100 200 300 400 500 600 700 800 900 1,000 1,100 Conventional Single-Margin Drill WGS Type Double-Margin Drill Conventional Grade WGS Type Work Material: S50C Work Material: SUJ2 Cutting Conditions: vc=80m/min f=0.25mm/rev Cutting Conditions: vc=80m/min f=0.25mm/rev H =16mm H =13mm J44