MECHANICAL ASSEMBLY

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Threaded FastenersDiscrete hardware components that have external orinternal threads for assembly of parts•Most important category of mechanical assembly•In nearly all cases, threaded fasteners permitdisassembly•Common threaded fastener types are screws, bolts,and nuts©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Screws, Bolts, and NutsScrew - externally threaded fastener generallyassembled into a blind threaded holeBolt - externally threaded fastener inserted throughholes and "screwed" into a nut on the opposite sideNut - internally threaded fastener having standardthreads that match those on bolts of the samediameter, pitch, and thread form©2002 John Wiley & Sons, Inc. M. P. Groover, “Fundamentals of Modern Manufacturing 2/e”
Page 1 and 2: MECHANICAL ASSEMBLY•Threaded Fast
Page 3 and 4: Products of Mechanical Assembly•M
Page 5: Reasons Why Mechanical Assembly isO
Page 9 and 10: Some Facts About Screws and Bolts
Page 11 and 12: Types of Screws•Greater variety t
Page 13 and 14: Self-Tapping Screws•Designed to f
Page 15 and 16: Figure 33.6 - Screw thread inserts:
Page 17 and 18: Figure 33.8 - Types of washers: (a)
Page 19 and 20: Figure 33.9 - Typical stresses acti
Page 21 and 22: Tools and Methods for ThreadedFaste
Page 23 and 24: RivetsUnthreaded, headed pin used t
Page 25 and 26: Rivets -Applications and Advantages
Page 27 and 28: Interference FitsAssembly methods b
Page 29 and 30: Shrink and Expansion FitsAssembly o
Page 31 and 32: Figure 33.13 - Snap fit assembly, s
Page 33 and 34: Figure 33.14 - Retaining ring assem
Page 35 and 36: StaplingPreformed U-shaped staples
Page 37 and 38: Placement of a component into a mol
Page 39 and 40: Integral FastenersComponents are de
Page 41 and 42: SeamingEdges of two separate sheetm
Page 43 and 44: DFA Guidelines•Use modularity in

MECHANICAL ASSEMBLY

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