Общий каталог SGS 2018 - страница 377

KSPT Reference Information ISO h 6 S pecificat ion s Dia m et er + – Dia m et er + – ≥ 1/8 - 3/16 0.00000 –0.00032 ≤3 0,000 0,006 > 3/16 - 7/16 0.00000 –0.00035 >3-6 0,000 0,008 > 7/16 - 5/8 0.00000 –0.00043 > 6 - 10 0,000 0,009 > 5/8 - 1 0.00000 –0.00051 > 10 - 18 0,000 0,011 > 1 - 1-1/4 0.00000 –0.00063 > 18 - 25 0,000 0,013 M a ch in in g Fo r m u l a s Inc h Fo r m u l a s M et r ic Fo r mu l a s sfm = rpm x .262 x cutting diameter m/min = (3.14 x cutting diameter x rpm) / 1000 rpm = sfm x 3.82 / cutting diameter rpm = (1000 x m / min) / (3.14 x cutting diameter) feed (inches per tooth) = ipm / ( number of teeth x rpm) feed (mm per tooth) = millimeters per minute / (number of teeth x rpm) feed (inches / minute) = inches per tooth x number of teeth x rpm feed (mm/minute) = feed per tooth x number of teeth x rpm feed (inches / minute) = ipr x rpm feed (mm/minute) = mmr x rpm feed (inches / revolution) = ipm / rpm feed (mm per revolution) = mmr / rpm cusp height* = (tool diameter / 2) – √(tool diameter2 – pitch2) / 4 cusp height* = (tool diameter / 2) –√ (tool diameter2 – pitch2) / 4 pitch = √4 x (cusp height x tool diameter) – 4 x (cusp height2) pitch = √4 x (cusp height x tool diameter) – 4 x (cusp height2) mrr – milling – (in3/min) = width of cut x depth of cut x ipm mrr – milling – (cm3/min) = (width of cut x depth of cut x mm/min) / 1000 cutting time – drilling – (minutes) = length / ipm cutting time – drilling – (minutes) = length / mm/min sfm surface feet per minute rpm revolutions per minute ipm feed rate in inches per minutes ipr inches per revolution mmr millimeters per revolution mm/min feed rate in millimeters per minute mrr material removal rate * on flat surface Gene r a l For m ul a s coolant pressure: 1 Bar = 14.5 Pounds per Square Inch (PSI) calculation of coolant pressure: Pounds Per Square Inch (PSI) = (Horsepower of Pump x 1.460) / Gallons per Minute (GPM) 1 Liter = 0.254 Gallons inch = millimeters / 25.4      millimeters = inch x 25.4 inch tap drill sizes = major diameter – ((1.299 x % of thread) / threads per inch) metric tap drill sizes = major diameter – (1.082 x pitch x % of thread) inch thread forming drill size: maximum diameter = basic major diameter – (3/8 x number of threads per inch) inch thread forming drill size: minimum diameter = basic major diameter – (1/2 x number of threads per inch) metric thread forming drill size: maximum diameter = basic major diameter – (.375 x pitch) metric thread forming drill size: minimum diameter = basic major diameter – (.500 x pitch) www.kyocera-sgstool.com 377