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E-grāmata: Geometric Dimensioning and Tolerancing for Mechanical Design 2/E

  • Formāts: 368 pages
  • Izdošanas datums: 13-May-2011
  • Izdevniecība: McGraw-Hill Professional
  • Valoda: eng
  • ISBN-13: 9780071772143
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  • Formāts: 368 pages
  • Izdošanas datums: 13-May-2011
  • Izdevniecība: McGraw-Hill Professional
  • Valoda: eng
  • ISBN-13: 9780071772143
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Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.AN UP-TO-DATE GUIDE TO GEOMETRIC DIMENSIONING AND TOLERANCINGWritten in accordance with the latest revision of the geometric dimensioning and tolerancing (GD&T) stanedard, ASME Y14.5-2009, this book teaches the principles and practical applications of GD&T in an easy-to-understand manner. Geometric Dimensioning and Tolerancing for Mechanical Design, Second Edition, begins the discussion of each control with a definition, and then describes how the control is specified, interpreted, and inspected. Detailed drawings illustrate the topics discussed.

Study questions and problems at the end of each chapter emphasize key concepts and serve as a self-test. Ensure the proper assembly of parts, improve quality, and reduce costs with help from this authoritative resource.

Coverage includes: * Dimensioning and tolerancing fundamentals * Symbols, terms, and rules * Datums * Form--flatness, straightness, circularity and cylindricity * Orientation--perpendicularity, parallelism, and angularity * Position--general, location, and coaxially * Concentricity and symmetry * Runout * Profile * Graphic analysis * Strategy for tolerancing parts
Preface ix
Acknowledgments xi
1 Introduction to Geometric Dimensioning and Tolerancing
1(8)
Chapter Objectives
2(1)
What Is GD&T?
2(1)
When Should GD&T Be Used?
2(1)
Advantages of GD&T Over Coordinate Dimensioning and Tolerancing
3(4)
The Cylindrical Tolerance Zone
4(1)
The Maximum Material Condition Modifier
5(1)
Datum Features Specified in Order of Precedence
6(1)
Summary
7(1)
Chapter Review
7(2)
2 Dimensioning and Tolerancing Fundamentals
9(8)
Chapter Objectives
9(1)
Fundamental Drawing Rules
9(1)
Units of Linear Measurement
10(1)
Specifying Linear Dimensions
11(1)
Specifying Linear Tolerances
11(2)
Interpreting Dimensional Limits
13(1)
Specifying Angular Dimensions
13(1)
Specifying Angular Tolerances
14(1)
Dimensioning and Tolerancing for CAD/CAM Database Models
14(1)
Summary
15(1)
Chapter Review
15(2)
3 Symbols, Terms, and Rules
17(32)
Chapter Objectives
17(1)
Symbols
17(13)
Geometric Characteristic Symbols
17(1)
The Datum Feature Symbol
18(2)
The Feature Control Frame
20(1)
Reading the Feature Control Frame
20(3)
Other Symbols Used with Geometric Tolerancing
23(7)
Terms
30(6)
Rules
36(3)
Rule #1 Limits of Size Prescribe Variations of Form
36(2)
Rule #2 Applicability of Modifiers in Feature Control Frames
38(1)
The Pitch Diameter Rule
39(1)
Summary
39(1)
Chapter Review
40(6)
Problems
46(3)
4 Datums
49(20)
Chapter Objectives
49(1)
Definition
49(1)
Application of Datums
50(1)
Immobilization of a Part
50(2)
Datum Feature Selection
52(1)
Datum Feature Identification
53(1)
Inclined Datum Features
54(1)
Cylindrical Datum Features
54(1)
Establishing Datum Features
54(5)
Plane Flat Surfaces as Datum Features
54(2)
Datum Features of Size at RMB
56(1)
Datum Features of Size at MMB
56(1)
Plane Flat Surfaces versus Features of Size
56(1)
Irregular Features of Size
57(2)
Multiple Datum Features
59(1)
Partial Datum Features
59(1)
Datum Targets
59(4)
Datum Targets Established on a Cylindrical Part
60(1)
Step and Movable Datum Target Symbols
61(2)
Summary
63(1)
Chapter Review
64(2)
Problems
66(3)
5 Form
69(20)
Chapter Objectives
69(1)
Flatness
69(4)
Definition
69(1)
Specifying Flatness Tolerance
70(1)
Specifying Flatness of a Median Plane
71(2)
Unit Flatness
73(1)
Straightness
73(4)
Definition
73(1)
Specifying Straightness of a Surface Tolerance
73(2)
Specifying Straightness of a Median Line
75(2)
Circularity
77(1)
Definition
77(1)
Specifying Circularity Tolerance
77(1)
Cylindricity
78(1)
Definition
78(1)
Specifying Cylindricity Tolerance
78(1)
Free-State Variation
79(2)
Summary
81(1)
Chapter Review
82(3)
Problems
85(4)
6 Orientation
89(16)
Chapter Objectives
89(1)
Perpendicularity
90(3)
Definition
90(1)
Specifying Perpendicularity of a Flat Surface
90(1)
The Tangent Plane
91(1)
Specifying the Perpendicularity of an Axis to a Plane Surface
91(2)
Parallelism
93(2)
Definition
93(1)
Specifying Parallelism of a Plane Surface
93(1)
Specifying Parallelism of an Axis
94(1)
Angularity
95(3)
Definition
95(1)
Specifying Angularity of a Plane Surface
95(2)
Specifying Angularity of an Axis
97(1)
Alternative Practice
97(1)
Summary
98(1)
Chapter Review
98(3)
Problems
101(4)
7 Position, General
105(26)
Chapter Objectives
105(1)
Definition
105(1)
The Tolerance of Position
106(1)
Specifying the Position Tolerance
107(5)
Specifying the Position Tolerance at RFS
107(2)
Specifying the Position Tolerance at MMC
109(3)
Datum Features of Size Specified with a Regardless of Material Boundary (RMB) Modifier
112(1)
Datum Features of Size Specified with a Maximum Material Boundary (MMB) Modifier
112(6)
MMB Modifier Explained in More Detail
113(5)
Locating Features of Size with a Least Material Condition (LMC) Modifier
118(1)
Calculation of Wall Thickness
119(1)
Boundary Conditions
120(1)
Zero Positional Tolerance at MMC
121(3)
Summary
124(1)
Chapter Review
125(2)
Problems
127(4)
8 Position, Location
131(34)
Chapter Objectives
131(1)
Floating Fasteners
131(3)
Clearance Hole LMC Diameter
133(1)
Clearance Hole Location Tolerance T
133(1)
Clearance Hole MMC Diameter H
134(1)
Fixed Fasteners
134(4)
Clearance Hole LMC Diameter
136(1)
Threaded Hole Location Tolerance tl
136(1)
Clearance Hole Location Tolerancet2
136(1)
Clearance Hole MMC Diameter H
137(1)
Projected Tolerance Zones
138(2)
Through Holes
139(1)
Blind Holes
139(1)
Multiple Patterns of Features
140(2)
Composite Positional Tolerancing
142(5)
Multiple Single-Segment Positional Tolerancing
147(1)
Nonparallel Holes
148(1)
Counterbored Holes
148(2)
Noncircular Features at MMC
150(2)
Symmetrical Features at MMC
152(1)
Summary
152(1)
Chapter Review
153(2)
Problems
155(10)
9 Position, Coaxiality
165(10)
Chapter Objectives
165(1)
Definition
165(1)
Comparison Between Coaxiality Controls
166(1)
Specifying Coaxiality at Maximum Material Condition
167(1)
Composite Positional Control of Coaxial Features
168(1)
Coaxial Features Controlled Without Datum References
169(1)
Tolerancing a Plug and Socket
170(1)
Summary
170(1)
Chapter Review
171(1)
Problems
171(4)
10 Concentricity and Symmetry
175(10)
Chapter Objectives
175(1)
Concentricity
175(2)
Definition
175(1)
Specifying Concentricity
175(2)
Applications of Concentricity
177(1)
Symmetry
177(3)
Definition
177(1)
Specifying Symmetry
178(2)
Applications of Symmetry
180(1)
Summary
180(1)
Chapter Review
181(1)
Problems
182(3)
11 Runout
185(10)
Chapter Objectives
185(1)
Definition
185(1)
Circular Runout
185(1)
Total Runout
186(1)
Specifying Runout and Partial Runout
186(1)
Multiple Datum Features
187(1)
Face and Diameter Datum Features
188(1)
Geometric Controls to Refine Datum Features
188(1)
Relationship Between Feature Surfaces
189(1)
Inspecting Runout
189(1)
Summary
190(1)
Chapter Review
191(1)
Problems
192(3)
12 Profile
195(20)
Chapter Objectives
195(1)
Definition
195(1)
Specifying Profile Tolerance
195(3)
Application of Datum Features
198(1)
A Radius Refinement with Profile
199(1)
Combining Profile Tolerances with Other Geometric Controls
200(1)
Coplanarity
201(2)
Profile of a Conical Feature
203(1)
Composite Profile Tolerancing
204(1)
Multiple Single-Segment Profile Tolerancing
204(4)
Inspection
208(1)
Summary
208(1)
Chapter Review
209(1)
Problems
210(5)
13 Graphic Analysis
215(16)
Chapter Objectives
215(1)
Advantages of Graphic Analysis
215(1)
Accuracy of Graphic Analysis
216(1)
Analysis of a Composite Geometric Tolerance
216(4)
Analysis of a Pattern of Features Controlled to a Datum Feature of Size
220(4)
Summary
224(1)
Chapter Review
225(1)
Problems
226(5)
14 A Strategy for Tolerancing Parts
231(22)
Chapter Objectives
231(1)
Features of Size Located to Plane Surface Features
231(6)
Features of Size Located to Features of Size
237(4)
A Pattern of Features Located to a Second Pattern of Features
241(4)
Summary
245(1)
Chapter Review
246(3)
Problems
249(4)
Appendix 253(6)
Index 259
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