Machinery’s Handbook, 31st Edition
Index
2905
D rills
D ynamometers 2535 D yne 2504, 2831
( continued )
sharpening 1063–1065 sizes for tapping 2168 specifications 1888 steels for 961, 962 straight shank 931 straight-shank drill sizes
for Acme threads 1009
E E arth, composition of crust 381 E BM (electron beam machining) 1350, 1558 E ccentricity 2340 E chols thread 2120 E conomic impact of lubrication 2502 E conomic tool life 1213 See also Tool life E CT (equivalent chip thickness) 1091–1093 E ddy current testing (ET) 1629 E DG (electrical discharge grinding) 1470 E DM (electrical discharge machining) 1345, 1469 capacitor 1470 craters 1470 dielectric 1470 discharge channel 1470 dither 1470
core drills 953 letter 937–938 metric 933–943 number 933–937 straight-shank taper-length drill sizes fractional 934–943
letter 937–938 metric 934–943 number 934–937 screw machine length 944
tangs for 943 tap and clearance hole sizes 2169 for taper pin reamers 1887, 1890 taper-shank core drills 950–953 taper-shank drill sizes 945–950
terms 931–932 twist 931–954 twisted
duty cycle 1470, 1473 electrical controls 1474 electrode 1470 materials 1475 uses 1476 electro-forming 1470 electronic controls 1472 Farad 1470 flushing 1472 gap current 1470 gap voltage 1470 heat-affected zone 1473 ion 1470 ionization 1470 low-wear 1470 machine settings 1473 materials 1475 metal removal rates 1474 negative electrode 1470 no-wear 1470 overcut 1471 plasma 1471 plunge (sinker) method
jobber series 959 parallel series 960
types 931, 932
D rives
nose key 1018–1019 screws 1833, 1848 square, for portable tools 1038 studs 1894 taper 1017–1018 D runken thread 2120 D ry measure 2854 D ryseal pipe threads 2095–2097, 2098 assembly limitations 2098 designations 2097, 2098 diameter pitch combinations 2098 fine taper 2098 limitation of assembly 2095 limits on crest and root 2095 pressure-tight joints 2095 taps for 1005 types 2095 D ST (Daylight Savings Time) 2875 D uctile iron 429, 1482 cast iron 1481–1482 D uctility 1403 D uranickel, machining 1258
electrode materials 1474 machine settings 1472 making electrodes 1477 metal removal rates 1474
positive electrode 1471 power parameters 1471 process 1471 quench 1471 recast layer 1471, 1474 secondary discharge 1471
D urometer tests 506 D ynamic balance 198 D ynamic factor 2253 D ynamic stresses 279 D ynamic viscosity 2504
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