Общий каталог Yamawa 2021 - страница 595

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Thread Mills Intro PRML SP Premium Thread Mills FEATURES SL HF COATINGCARBIDE Ultra-fine micrograin carbideSpecific design and special coating for extraordinarythread surface finishing. Low cutting resistance and reduced side forces, allow to produce internal threads with high accuracy and straightness. PO RECOMMENDED APPLICATIONS ISO ISO P1 H K1 H P2 H K2 H ST P3 H P4 H WATCH P5 H THE VIDEO ROLL P6 H H 1st choice I suitable YMW-PRML Product Features CARBIDE Work-materials Vc (m/min) Feed per toothfz(mm/t)The PRML is a left hand cutting tool.The tool rotates counter clockwise. The PRML feeds in the Z axis from the top as shown below. Thermal Refined Steel 35 to 45HRC 40÷100 0.02÷0.05 Thermal Refined Steel 25 to 35HRC 40÷100 0.03÷0.06 LONG Grey Cast Iron 40÷100 0.02÷0.05 Nodular Cast Iron 40÷100 0.02÷0.05 Alloy Steel 40÷100 0.04÷0.06 High Carbon Steel 40÷100 0.04÷0.06 HAND Medium Carbon Steel 60÷100 0.03÷0.05 TAPS Low Carbon Steel 60÷100 0.03÷0.05 Process Data EG (STI) PRML 9.0P1.75 M12x1.75 Degradation of Pitch Diameter Work-material 42CrMo4 - 1.7225 (30HRC) Cutting Speed 100 m/min SPECIALTHREADS,Feed per tooth fzCutting Depth 0.06 mm/t24 mm GAUGES Hole diameter ø10.3 Number of insection 1 Machine Machining Center (BT30) THREAD Lubricant Water soluble oil (x20) MILLS YMW DIES Internal coolant External coolant No chips Excellent finishing Residual chips Bad finishing CENTER DRILLS Technical info 596