Общий каталог Yamawa 2022 - 2023 - страница 832

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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 JIS ⑨ Thread Mills / Premium Thread Mills Cutter Overall Thread Thread+Neck Shankdia.lengthlengthlengthdia.DcLℓℓnDs JIS ① PRML Z-PRO Premium Thread Mills ② Specification Coating <2D ③ ④ Product Features ● The same PRML can process right and left hand internal threads by using the helical interpolating process. ● Because it cuts at the first thread, it won't make the internal threads taper and the internal threads become highly accurate. ● When cutting, the load on the tool is small and the tool life is long. ⑤ ● Cutting resistance is reduced by turning the tool counterclockwise and machining it from the top to the bottom with 1 pass cutting. Cutting Data Processing Conditions［9.0P1.75-M12 M12×1.75］ Pitch diameter change graph Workpiece Material SCM440（30HRC） 10.96 New Product ⑥ Cutting Speed 100m/min 10.9410.92 PRML Feed per Tooth 0.06mm/t 10.9 Cutting Length 24mm 10.88 NG NG Bored Hole Size φ10.3 10.86 Conventional product * Dimensionswithout correction 10.84 Longer Number of Passes 1Time Tool 10.82⑦Machinery TypeTapping center (BT 30)10.8 Life Cutting Fluid Water soluble cutting fluid, 20 to 1 dilution 0 100 200 300 400 500 600 700 800 900 (Number of holes processed) Use the internal coolant supply for blind hole applications. Internal Coolant External Coolant Supply Supply ⑧ ⑨ Instructions Processing Conditions: Use a counterclockwise spindle rotation for a left handcutting tool. Process from top to the bottom like ② 〜 ③. Workpiece Material Cutting Speed Feed per Tooth fz（m/min）（mm/t） Thermal refined steel 35 ～ 45HRC 40 ～ 100 0.02 ～ 0.05 ⑩ The program can be created from our web site. Thermal refined steel 25 ～ 35HRC 40 ～ 100 0.03 ～ 0.06Cast Iron　FC40 ～ 1000.02 ～ 0.05 ①① ②② ③③ ④④ ⑤⑤ Ductile Cast Iron　FCD 40 ～ 100 0.02 ～ 0.05 Alloy Steel　SCM 40 ～ 100 0.04 ～ 0.06 High Carbon Steel S45C ～ 40 ～ 100 0.04 ～ 0.06 Medium Carbon Steel S25C ～ S45C 60 ～ 100 0.03 ～ 0.05 Low Carbon Steel ～ S20C ／ SS400 60 ～ 100 0.03 ～ 0.05 Z Axis ⑪ Back ◇Tool feed speed calculation formulatoZ AxiscenterFeed 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 ⑨-3 Surface FfinishChips Left in Hole.