5 Machined SurfacesFIGURE 37-2 (a) Terminology used in specifying and measuring surface quality; (b) symbols used on drawingby part designers, with definitions of symbols; (c) lay symbols; (d) lay symbols applied on drawings.
6 Surface MeasurementFIGURE 37-3 (a) Schematic of stylus profile device for measuring surface roughness and surfaceprofile with two readout devices shown: a meter for AA or rms values and a strip chart recorder forsurface profile. (b) Profile enlarged. (c) Examples of surface profiles.
7 Surface Finish Measurement FIGURE 37-4 Typical machinedsteel surface as created by facemilling and examined in the SEM. Amicrograph (same magnification) ofa in. stylus tip has beensuperimposed at the top.
8 SEM Micrograph FIGURE 37-5 (a) SEM micrograph of a U.S. dime, showing the S in the wordTRUST after the region has beentraced by a stylus-type machine.(b) Topographical map of the Sregion of the word TRUST from aU.S. dime [compare to part (a)].
9 RoughnessFIGURE 37-6 Comparison of surface roughness produced by common production processes.(Courtesy of American Machinist.)
10 Surface Deformation FIGURE 37-7 Plastic deformation in the surface layerafter cutting shown in a micrograph at 120X.
11 Surface Damage as a Function of Rake Angle FIGURE 37-8 The depthof damage to the surface of amachined part increases withdecreasing rake angle of thecutting tool.
12 Fatigue Strength as a Function of Finish FIGURE 37-9 Fatigue strengthof Inconel 718 components aftersurface finishing by grinding orEDM. (Field and Kahles, 1971).
13 Shot PeeningFIGURE & 11 (a) Mechanism for formation of residual compressive stresses in surface by cold plastic deformation (shot peening). (b) Hardness increased in surface due to shot peening.
15 Finishing Barrel FIGURE 37-12 Schematic of the blow of material in tumblingor barrel finishing. The parts andmedia mass typically account for50 to 60% of capacity.
16 Synthetic Media Geometry FIGURE Syntheticabrasive media are available in awide variety of sizes and shapes.Through proper selection, themedia can be tailored to theproduct being cleaned
17 Vibration Finishing Tub FIGURE Schematic diagram of a vibratory-finishing tub loaded with parts andmedia. The single eccentric shaft drive provides maximum motion at the bottom, which decreasesas one moves upward. The dualshaft design produces moreuniform motion of the tub and reduces processing time
28 AnodizingFIGURE The anodizing processhas many steps.
29 Nickel Carbide Plating FIGURE (Left) Photomicrograph of nickel carbide plating produced by electroless deposition. Noticethe uniform thickness coating on the irregularly shaped product. (Right) High-magnification cross sectionthrough the coating. (Courtesy of Electro-Coatings Inc.)