Fundamentals of Steel Heat Treating

[Ben Krasnow] Discusses The Heat Treatment Of Steel

6.62 Fifteen successive heats of a steel alloy are tested for hardness. The resulting data are shown in Table 6E.21. Set up a control chart for the moving range and a control chart for individual hardness measurements.TABLE 6E.21 Hardness Data for Exercise 6.62Hardness Heat (coded) Heat (coded) M

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