Machinery’s Handbook, 31st Edition
Index
2969
T hreads and threading metric screw threads
( continued )
T hreads and threading square thread 2077
( continued )
ten-degree modified 2077 stress area 1660, 1668, 1946, 2063 Acme thread 2056, 2060 Unified fine thread 1978 stub Acme screw threads 2054, 2065–2072 stub thread 60-degree 2075 tap drill sizes 2160–2167, 2168 taper, measurement by wire method 2139
ANSI/ASME Standard MJ profile 2033–2036 MJ profile, designations 2037 MJ profile, diameter-pitch combinations 2034 MJ profile, symbols 2037 M profile 2012–2033 M profile, allowance 2012 M profile, comparison with inch threads 2012 British Standard ISO metric 2044–2053 ISO metric 1942 British Standard 2044–2053 miniature 2044 trapezoidal 2037–2043 micrometers for measuring pitch diameters 2122 microscope objective thread 2114 milling 2197–2198 changing pitch of thread slightly 2198 classes of work 2198 multiple cutter method 2197 planetary method 2198 single cutter method 2197, 2198 miniature ISO metric 2044 Unified 1992–1996 minor diameter tolerances 1991 modified square thread 10-degree 2077 molded in 596 National standard form or profile 1940 Philadelphia carriage bolt thread 2121 pipe ANSI/ASME Standard 2089–2097, 2098 dryseal 2095–2097, 2098 taper 2089–2091 pitch 1945 changing slightly 2199 diameter 1945 maximum when die cut 2198 pressure-tight joints 2093 rolled lamp base threads 2113 SAE Standard screw thread 2121 saw-tooth 2078 screw thread, definition 1946 self-forming screws 1833–1836, 1841 M profile limits of size 2026 multiple, designation 1991 multi-start threads, CNC 1377
thread calculations 1374–1375 thread cutting, CNC 1374–1377 thread forms 1940 thread grinding accuracy obtainable 2192 multi-ribbed wheels 2193
number of wheel passes 2193, 2194 ribbed wheel for fine pitches 2194 roughing and finishing wheels 2193 single-edge wheel 2192 from the solid 2194 wheels 2192 grain size 2196 hardness of grade 2195
speeds 2195 truing 2195 types for 2192 and work rotation 2194
work speeds 2195 thread milling, CNC 1363 thread rolling 2187–2191
advantages of process 2190 automatic screw machines 2189 blank diameter 2188 dies, cylindrical 2187 dies, flat 2187 machines used 2189 precision thread rolling 2188
production rates 2187 speeds and feeds 2190 steels 2188
thread selection 1990 tolerances
of external threads 2024 grade dimensions 2026 of pitch diameter 2024 tolerance system 2019, 2045 tools
relief angles, single-point 2179, 2180 tools for square threads 1010 trapezoidal metric thread 2037, 2039–2043 formulas 2038
US Standard 1940 watch 1992–1996 Whitworth 2116
self-tapping screws 1836 Sellers screw thread 2121 sharp V-type thread 1940 single point threading, CNC 1374 spark plug threads 2112
truncated 2116, 2118 wire sizes for checking pitch diameters 2124, 2125
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