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 TI Z-PRO Premium Thread Mills for Heat-Resistant Alloys ② Specification Coating <2D ③ 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. ● 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. ⑥ Cutting Data Processing Conditions[6.0P1.0] Workpiece Material Ti-6Aℓ-4V Internal Thread Surface Cutting Speed 50m/min 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 cente(r BT30) ⑧ Cutting Fluid Water soluble cutting fluid, 20 to 1 dilution 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) 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 ⑩ ①① ②② ③③ ④④ ⑤⑤ Martensitic Stainless Steel 40 ~ 60 0.02 ~ 0.061) 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. ⑪ tocenter Z Axis * F ormulas for revolution speed and feed speed of toolRevolution 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