Fig. 5.11 Some problems that may occur on polished sample surfaces: cotton threads (from the drying swab material), dust particles, filiform rust, rust in the shape of a rosary. More

Fig. CH7.2 Damage to the threads of the link rod, near the fracture surface, as a result of bending More

Fig. 5 Rule of Four and Six as applied to coating external threads. Source: Ref 8 More

Fig. 11.19 Chromatographs showing grain flow for two methods of forming threads ( Ref 11.22 ). (a) Ground. (b) Rolled. Courtesy of Machine Design More

Fig. 11.25 Effect of thread shape on fatigue life of heat treated and rolled threads. Source: Ref 11.22 More

Fig. 11.28 Two methods for distributing force among threads. (a) Large undercut at base to permit flexing. (b) Distributed small undercuts at several threads. Source: Ref 11.22 More

Fig. 11.53 Effect of rolling threads before and after heat treatment on 220 ksi steel bolts. Source: Ref 11.65 More

Fig. 64 ASTM B7 low-alloy steel bolt grade. Fracture initiated along threads, with typical and pronounced beach marks (i.e., cyclic fracture propagation) and transgranular fracture mode. (a) Location of bolts in pump coupling. (b) Beach marks showing asymmetrical bending with initiation More

Fig. 5.42 Pinion design with threads in the shaft More

Fig. 43 Pinion design with threads in the shaft More

Fig 10 Plan-view (i.e., top-view) TEM of a ❬100❭ DLD growing out of a threading dislocation. Threading dislocation is highlighted with the letter “D”. Photo courtesy of Prof. Pierre Petroff of UCSB, after [17] . More

Fig. 10.92 Fastener thread cyanided (nitrogen and carbon introduced from a cyanide salt bath). The case thickness can be observed. Etchant: nital. More

Fig. 12.48 Longitudinal cross section of the threaded region of M5 fasteners. (a) and (c) Rolled thread. (b) and (d) Machined (or cut) thread. The deformation of the “fibers” of the original material causes a large reduction of the fiber spacing close to the thread roots in the case of rolled More

Fig. 12.49 Longitudinal cross section of a nut, close to the thread. The alignment of the structure, which is deformed, indicates that the central hole of the nut was made by punching (in the image, from right to left). Afterward, the thread was machined (cut). Etchant: nital. More

Fig. 15.18 Ferrite layer formed on the surface of a thread of a bolt due to deficient removal of the phosphate layer that was applied to the bolt before the heat treatment; a lap can also be observed (a). (b) Higher magnification view of the thread surface. Courtesy of FIBAM Industrial, SP More

Fig. CH49.4 Sketch showing the location of leading thread in the stud More

Fig. 8.9 Bolt and thread nomenclature More

Fig. 24.11 Stress-relief cycle for removing machining damage of a threaded hole following cycle used for beryllium hot pressed block. Source: Switz 1979 More

Fig. 7 Brass tensile bar sample with threaded ends More

Fig. 8.3 Examples of grinding cracks. (a) Cracks on the flank of a worm thread. (b) Micrograph of grinding cracks in case-hardened 8620 steel showing several small cracks (arrows at right) that extended through the hardened case to the core, and the burned layer on surface (dark band indicated More