Каталог Iscar сверла ружейные и для глубокого сверления 2022 - страница 15

¿D DEEP DRILLING - BTA SYSTEM USER GUIDE Machine Setup STS and DTS Guide bush Tolerance Workpiece rotating system Guide bush tolerance should be G6 in order to keep Workpiece - rotating Guide bush Tool - fixed consistent tool life and cutting accuracy. Diameters for G6 tolerance are shown on the right. øD (mm) G6 tolerance (mm) 16.00 - 18.00 +0.006 - +0.017 18.01 - 30.00 +0.007 - +0.020 30.01 - 40.00 +0.009 - +0.025 Up to Material 0.02 mm Guide bushmaterial System Advantage • Only used when the workpiece and the Hardened steel Workpiece rotating Cost efficient(inexpensive) tool axis are on the same line.•Better hole straightness and wear resistance on guideTungsten carbideTool rotatingWorkpiece rotatingLong lifeguide bush bush are provided compared to the tool rotating system. • Keep the alignment between guide bush Guide bushing and spindle within 0.02 mm. (use hardened steel or carbide) Tool rotating system Tool - rotating Guide bush Workpiece - fixed Coolant Up to Temperature 0.02 mm The proper coolant temperature is 30 - 40°C (90 - 100°F). If the temperature exceeds this range, the coolant will deteriorate easily and may shorten • Can be used when the workpiece and the tool life and generate poor surface finish. tool axis are not on the same line. • Keep the alignment between guide bush Filtration and spindle within 0.02 mm. The coolant must be filtered properly in order to protect guide pads and workpiece surface. DTS Positioning of outer tube and guide bush Water-soluble type Be sure to set the outer tube more than 5.0 mm into Around 10% (dilution rate 1/10) is recommended the guide bush to properly supply the coolant. for the concentration of water-soluble coolant in order to protect guide pads. Positioning of workpiece material and guide bush Sealing is not required for DTS because of the vacuum effect, but keep the gap between workpiece material and guide bush within 1.0 mm. Workpiece Guide bush Outer tube At least Up to 1.0 mm 5.0 mm 199