Общий каталог Sumitomo 2019 - 2020 - страница 1134

SUMIBORON (μm)Surface Roughness RadiusNoseLargeSmall Nose Radius Theoretical Surface Roughness h (μm)Cutting Force (Back Force) SUMIBORON Inserts & Special Holders for High Efficiency Machining ■ Features ● Improved finished surface roughness with high-feed cutting ● Ideal for profiling when surface roughness is required L ● Operation with different nose radii ● Comparison of Theoretical Surface Roughness Nose Radius Large Nose Radius Same surface f Feed Rate Good Surface Roughness roughness at approx.double the efficiency Work Material Theoretical Surface Roughness 1/3 or Less Small Nose Radius f Feed Rate Feed Rate Feed Rate Nose Radius 0.8mm vs. 2.4mm Comparison f Theoretical surface roughness 1/3 or lower Work Material Required Theoretical Surface Roughness Nose Radius 0.8mm vs. 2.4mm Comparison μm Same surface roughness at approx. double the efficiency * Actual value of surface roughness is approximately 1.5 to 3 times higher (for steel). * Theoretical surface roughness is calculated using the following formula: [h = (f2 / 8r) x 103]. ● Machined surface roughness comparison with different nose radii ● Cutting force comparison with different nose radii f f Wiper Insert 35% Increase Good Surface Roughness f f Wiper Insert Large Radius Inserts Approx. 10 to 15% Increase Wiper Wiper Inserts with a larger nose radius also give better surface roughness during actual machining Low cutting force compared to wiper insert enables high-feed cutting Work Material: SCM415H (60HRC) Work Material: SCM415H (60HRC) Cutting Conditions: vc = 100m/min, ap = 0.1mm Dry Cutting Conditions: vc = 150m/min, f = 0.3mm/rev, ap = 0.1mm Dry L104