Общий каталог Yamawa 2022 - 2023 - страница 725

Drill dia. Dc Overall length L Shank dia. Ds Thread + Neck ℓn length ⑦ JIS ■Removable taps and machining conditions Spiral Fluted Taps (for blind hole) ① Cutting Edge Dia. Removable Tap G73 Revolution Speed Feed Speed Dc Steps （min ）-1 （mm/min） （mm） SP PO HT （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 Spiral Fluted Taps (for through hole) *This is most suitable for the removal of spiral fluted taps (with helix angle of 35°or more). ② Please see“Machining case 1” on the pre-page. ■Removal procedure 1 2 3 Spiral Pointed Taps (for through hole) ③ More fragments Flatten with for spiral pointed grinder! taps or hand taps Hand Taps ④ Cemented Carbide Taps A tap is broken. Before starting removal, Supplying enough water-soluble cutting oil, ⑤ flatten the broken part of the tap with a perform machining carefully in steps of G73. Select a cutting edge diameter suitable grinder or the like as far as possible. for the removable tap, firmly attach the For G73, please see "Notes" on the next page. 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 fragments with a scriber or the like. For PO and cause the removal tool to become chipped. tap. HT in particular, proceeding with machining by Roll Taps force will cause the removing tool to be broken by ⑥ the fragments caught in it. 4 Crack on 5 6 Special Thread Taps Simple Inspection Tools far side ⑦ Pipe Taps You will hear unusual sound when the removing tool When machining is finished, remove The procedure is complete. If ⑧ , goes through the tap. Stop feeding it. A crack is the remainder of the tap with a scriber necessary, deburr the internal thread Thread Mills Premium Thread Mills found on the far side of the hole, where the tap is or the like. again with a tap. ⑨ cut off. Proceeding with machining by force will 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. Dies ⑩ Center Drills Centering Tools ⑪ JIS You can also see it from the video site on the left. ⑦-80