Общий каталог Sumitomo 2019 - 2020 - страница 918

DrillingSolidIndexableIndexableHead TypeInsert TypeReamersBrazedOthers Hardness of inner wall surface (Hv) Super MultiDrills WGS Type ■ General Features The J flutes of the Super MultiDrill WGS have been tuned for improved chip breaking capabilities during drilling of thin sheets. Excellent sharpness prevents work hardening from drilling.The special double margin structure also achieves J stable hole diameter accuracy. ■ Features and Applications J flutes (groove shape) have been tuned to create a specialized shape for drilling of thin sheets. The special double margin structure also achieves stable hole diameter accuracy. Special double margin Special cutting edge shape Optimized groove shape ■ Target Workpieces [Common automotive components] ·Bearing hub (inner and outer rings) ·Knuckle 1.5D or less ·Differential ring ·Components such as bolt holes in automobile ange parts Drilling of thin sheets (thickness 1.5D or less) ■ Cutting Performance ● Reduces hardening of the workpiece surface during drilling Tool Life Judgment Line Conventional Tool WGS Type Work Material: S53C 400 Cutting Conditions: vc=70m/min, f =0.2mm/rev After 500 pcs. H=13mm After 1,000 pcs. 300 0 500 1,000 No. of Workpieces (pcs) ● Stable hole expansion tolerance ● Better chip breaking capabilities 0.05 Entry Intermediate Through 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 product Double margin WGS Type Conventional Tool 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 J58