1318 Каталог KYOCERA 2019 Режущий инструмент для металлообработки на станках Стр.R68

Каталог KYOCERA 2019 Режущий инструмент по металлу Стр. R68 1318 Lab2u

TECHNICAL BASIC DRILLING FORMULAS (Inch) Drilling DRILLING CORE DRILLING SURFACE SPEED PER MINUTE SFM = 0.262 x DIA x RPM HORSEPOWER REQUIRED AT THE SPINDLE HPS=QxUHP REVOLUTIONS PER MINUTE 3.82 x SFM RPM= DIA FEEDRATE (inches per minute) IPM = IPR x RPM FEEDRATE (inches per revolution) IPR=IPT x N METAL REMOVAL RATE (in3 per minute) DRILL: Q=3 x DIA x IPR x SFM COREDRILL: Q=12 x DOC x IPR x SFM HORSEPOWER REQUIRED AT THE MOTOR HPS HPM= EFF TIME IN CUT 15.7 x DIA x LOC T T= SFM x IPR or 60 x LOC IPM Definition of Terms DIA = DIAMETER OF THE DRILL (INCHES) DOC = DEPTH OF CUT (INCHES) EFF = MACHINE EFFICIENCY HPM = HORSEPOWER AT MOTOR HPS = HORSEPOWER AT SPINDLE IPM = FEEDRATE (INCHES PER MINUTE) IPR = FEEDRATE (INCHES PER REVOLUTION) IPT = CHIPLOAD (INCHES PER TOOTH) LOC = LENGTH OF CUT (INCHES) N = NUMBER OF EFFECTIVE FLUTES N = 1 FOR DRILLS N = 2 FOR COREDRILLS Q = METAL REMOVAL RATE (CUBIC INCHES PER MINUTE) RPM = REVOLUTIONS PER MINUTE SFM = SURFACE SPEED (FEET PER MINUTE) T = TIME (SECONDS) UHP = UNIT HORSEPOWER (SEE TABLE BELOW) UNIT HORSEPOWER FACTORS Material Hardness (BHN) UHP Factor (HP/in3/min) Material Hardness (BHN) UHP Factor (HP/in3/min) Aluminum ... 0.25 1050 225 0.80 Brass ... 0.25 4140 275 0.70 Copper - 0.30 52100 225 0.67 Gray Cast Iron 200 0.33 6150 375 1.30 Nodular Iron 225 0.54 Cast Steel 225 0.62 Inconel 700 330 1.10 Stainless Steel 225 0.73 1020 165 0.58 R68 Kyocera Visit us online at