[...]... this Handbook are solved in a similar manner, i.e., by substituting known values for the variables in the equations and solving for the unknown quantity using standard algebraic and trigonometric rules and procedures Ratios and proportions If a/b ϭ c /d, then Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill Companies All rights... sudden and gradual shifts in the process Many different types of control charts are available, and interested readers are encouraged to consult books dedicated to statistical process control In its simplest form, a process control chart graphically plots the measured dimensions for the last 20 parts (typically) to be measured The target value, USL, and LSL are also indicated on the chart Much more... highly versatile devices used to measure length (Fig 1.6) They are designed to allow the operator to measure outside dimensions, inside dimensions, and depths Digital readouts Figure 1.5 Digital micrometer Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill Companies All rights reserved Any use is subject to the Terms of Use... seeing a nonrandom (i.e., Figure 1 .9 Control chart indicating upward trend Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website Walsh CH01 8/30/05 8: 39 PM Page 16 Modern Metalworking Machinery, Tools, and Measuring Devices 16 Chapter One assignable)... produced by a process can either be random or assignable All metalworking processes inherently produce Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website Walsh CH01 8/30/05 8: 39 PM Page 15 Modern Metalworking Machinery, Tools, and Measuring... found from Angle A ϭ 180 Ϫ (42. 192 ϩ 110. 695 ) ϭ 27.113° Converting degrees to radians To convert from degrees to radians, you must first find the degrees as decimal degrees If R represents radians, then 2 R ϭ 360° or R ϭ 180° From this, 1 radian ϭ 57. 295 7 795 ° and 1° ϭ 0.0174533 radian Example: Convert 56.785° to radians 56.785° ϫ 0.0174533 ϭ 0 .99 11 radian Example: Convert 2. 097 8R to decimal degrees... of 2. 497 in Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website Walsh CH01 8/30/05 8: 39 PM Page 13 Modern Metalworking Machinery, Tools, and Measuring Devices Modern Metalworking Machinery, Tools, and Measuring Devices 13 Figure 1.8... Algebra, and Trigonometry 2.1.1 General mathematics and algebraic procedures If A/B = C /D, then A= BC D B= AD C C = AD B and D = BC A We may solve for any one unknown if all other variables are known The given equation is Transposing an equation 17 Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill Companies All rights reserved Any... algebraically subtracted for division ■ Exponents are algebraically multiplied for power raising ■ Exponents are algebraically divided for taking roots Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website Walsh CH02 8/30/05 9: 11 PM Page 34... the website Walsh CH01 8/30/05 8: 39 PM Page 11 Modern Metalworking Machinery, Tools, and Measuring Devices Modern Metalworking Machinery, Tools, and Measuring Devices 11 Figure 1.6 Digital caliper permit the operator to toggle between millimeters and inches as needed Dial indicators Dial indicators show linear displacement of a stylus as it is moved across the surface of a part or vice versa (Fig 1.7) . machining and metalworking handbook / Ronald A. Walsh. and Denis R. Cormier 3rd ed. p . cm. ISBN 0-07-145787 -9 1. Machining Handbooks, manuals, etc. 2. Metal-work—Handbooks, manuals, etc. I. Cormier, . Manufacturability Handbook. New York: McGraw- Hill, 199 9. Walsh CH01 8/30/05 8: 39 PM Page 3 Downloaded from Digital Engineering Library @ McGraw- Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw- Hill. knurling, grooving, boring, and many other turning operations. Electric discharge machining (EDM). EDM comes in two forms—sinker EDM and wire EDM. Sinker EDM uses spark erosion to machine a workpiece