Общий каталог Tungaloy 2020 - 2021 - страница 1343

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GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex Deep hole drilling head series A Single Tube System (STS) and Double Tube System (DTS) B Single Tube System (STS) Single tube system The STS may also be referred to as the BTA system in the deep hole drilling process. A large Guide Oilvolume of coolant is pumped under high pres-WorkpieceDrillbushpressuresure to the cutting area in the workpiece. ChipsmaterialDrilltubeheadSealheadChipBar restboxC are then forced out through the drill tube at the back and they do not touch workpiece al-lowing super surface finish. STS is a very goodmethod to obtain holes of high productivity and D high accuracy by using a dedicated drilling ma- chine and a sealing with the workpiece. Double Tube System (DTS) E Double tube system The DTS is characterized by its two tube con- struction and is therefore known as the doubletube system. A sealing system and pressurehead, which is required in the Single TubeWorkpiecematerialDrillheadGuide bush Outer tube Inner tube Double tube connectorChipboxF System (STS) is not necessary for the DTS and it is therefore suitable for conventional generalpurpose machines such as lathes or machiningcenters. G In general, because of less efficient chip evacu- ation than the STS the recommended max No need for seal drilling depth is 1000mm. However, the uniqueDTC-R tube connector that is capable of sup-plying high pressure coolant can successfully H achieve drilling depths of up to 2000 mm. I J K L M Tungaloy J117