Общий каталог Yamawa 2022 - 2023 - страница 834

⑨ Thread Mills / Premium Thread Mills Cutter dia. Dc Overall length L Thread length ℓ Thread+Neck length ℓn Shank dia. Ds JIS PRML TI Spiral Fluted Taps (for blind hole) ① JIS Z-PRO Premium Thread Mills for Heat-Resistant Alloys Spiral Fluted Taps (for through hole) ② Specification <2D Coating Spiral Pointed Taps (for through hole) ③ Hand Taps ④ Product Features ● The same PRML TI can process right and left hand internal threads by using the helical interpolating process. ● This is most suitable for tapping heat-resistant alloys. Cemented Carbide Taps ● Because it cuts at the first thread, it won't make the internal threads taper and the internal threads become ⑤ highly accurate. ● When cutting, the load on the tool is small and the tool life is long. ● Cutting resistance is reduced by turning the tool counterclockwise and machining it from the top to the bottom with 1 pass cutting. Roll Taps ⑥ Cutting Data Processing Conditions［6.0P1.0］ Workpiece Material Ti-6Aℓ-4V Internal Thread Surface Cutting Speed 50m/min Special Thread Taps Simple Inspection Tools ⑦ Feed per Tooth 0.04mm/t Cutting Length 10mm After Cutting of Bored Hole Size φ7.0 100 Holes Number of Passes 1Time Machinery Type Machining center（BT30） Pipe Taps ⑧ Cutting Fluid Water soluble cutting fluid, 20 to 1 dilution Thread Mills Premium Thread Mills ⑨ Instructions Processing Conditions: Use a counterclockwise spindle rotation for a left hand Workpiece Material Cutting Speed Feed per Tooth fz （m/min） （mm/t） cutting tool. Process from top to the bottom like ② 〜 ③. Titanium Alloy 40 ～ 60 0.02 ～ 0.06 The program can be created from our web site. Austenitic Stainless Steel 60 ～ 80 0.06 ～ 0.08 Dies 40 ～ 60 0.02 ～ 0.06 ⑩ Martensitic Stainless Steel ① ② ③ ④ ⑤ ① ② ③ ④ ⑤ 1) These cutting conditions are based on water soluble cutting fluid. Depending on the condition of the cutting fluid, satisfactory performance may not be delivered. 2) Being careful of the nozzle position, supply enough oil obliquely from Z Axis Back above the tool during use. Center Drills Centering Tools to Z Axis ＊F ormulas for revolution speed and feed speed of tool center ⑪ Revolution speed (min-1) = 1000 x Cutting speed / 3.14 / Cutter dia. (Dc) Feed speed (mm/min) = fz x No. of flutes x Revolution speed x (Nominal dia. of internal thread - Cutter dia. (Dc)) / Nominal dia. of internal thread JIS ⑨-5