Общий каталог Yamawa 2022 - 2023 - страница 725

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Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools Drill Overall Shank Thread + Neckdia.lengthdia.lengthDcLDsℓn⑦ JIS ■Removable taps and machining conditions Cutting Edge Dia. Removable Tap Revolution Speed Feed Speed G73 ① Dc（mm） SP PO StepsHT（min-1）（mm/min）（mm） 6.0 M8・M10 M8 M10 550 ～ 650 7.0 M10・M12 M10 M12 450 ～ 550 2～4 0.2 ～ 0.4 8.5 M12・M14・M16 M12 M12・M14 400 ～ 500 *This is most suitable for the removal of spiral fluted taps (with helix angle of 35°or more).Please see“Machining case 1” on the pre-page. ② ■Removal procedure 1 Flatten with 2grinder! 3 More fragmentsfor spiral pointed ③taps or hand taps ④ A tap is broken. Before starting removal, Supplying enough water-soluble cutting oil,flatten the broken part of the tap with agrinder or the like as far as possible.Select a cutting edge diameter suitableperform machining carefully in steps of G73.for the removable tap, firmly attach theFor G73, please see "Notes" on the next page.⑤ tool and workpiece to MC, and set the Remarks: If any tap fragments come out with unusual sound removing tool to the center of the broken      during machining, stop work and remove the Remarks: Machining with the part left broken will    cause the removal tool to become chipped.tap.      fragments with a scriber or the like. For PO and     HT in particular, proceeding with machining by      force will cause the removing tool to be broken by     the fragments caught in it. ⑥ 4 Crack on 5 6 far side ⑦ ⑧ You will hear unusual sound when the removing tool When machining is finished, remove The procedure is complete. If , goes through the tap. Stop feeding it. A crack is the remainder of the tap with a scriber necessary, deburr the internal thread found on the far side of the hole, where the tap is or the like. again with a tap. cut off. Proceeding with machining by force will ⑨ cause the tool to be broken by the fragments caught in it. Move the removal tool to a safe place, and remove the fragments with a chisel and a punch. *To eject sludge during machining, water-soluble cutting oil is recommended. ⑩ ⑪ JIS You can also see it from the video site on the left. ⑦-80