Technical Drawing for Product Design: Mastering ISO GPS and ASME GD&T

Preface
About This Book
Contents
About the Author
1 Introducing GD&T and GPS
	1.1 The Shortcoming of Traditional Coordinate Tolerancing
	1.2 Traditional Dimensioning Example
	References
2 The Geometrical Product Specification (GPS) Language
	2.1 General Concepts
	2.2 Classification of Geometrical Tolerances
	2.3 The Specification World: Types and Symbols of Geometrical Tolerances
		2.3.1 ISO Tolerance Indicator
		2.3.2 Drawing Geometrical Specifications
		2.3.3 Additional Symbols of the ISO 1101 and ISO 5458 Standards
	2.4 New Symbols and Specification Modifiers of ISO 5458:2018
	References
3 Dimensioning with Geometrical Tolerances
	3.1 Conversion from Traditional 2D Coordinate Tolerancing
	3.2 Advantages of Geometrical Product Specification
	References
4 The GPS and GD&T Language
	4.1 Historical Evolution of the ISO and ASME Standards
		4.1.1 The Birth of Tolerances
	4.2 The GPS Matrix Model
	4.3 The Fundamental ISO 8015 Standard
		4.3.1 The Effect of ISO 8015 on Technical Documentation
		4.3.2 The Main Concepts Defined in ISO 8015:2011
	4.4 General Geometrical Tolerances
		4.4.1 The ISO 22081 Standard
	4.5 The ASME Y14.5:2018 Standard
		4.5.1 The Envelope Requirement or Rule #1 of the ASME Standard
	4.6 The Main Differences Between ISO GPS and ASME GD&T Standards
		4.6.1 The Different Concepts of Pattern and Simultaneous Requirement
	References
5 Interdependence Between Dimensions and Geometry
	5.1 MMR and LMR Requirements
		5.1.1 Maximum Material Requirement (MMR)
		5.1.2 Least Material Requirement (LMR)
		5.1.3 Reciprocity Requirement (RPR)
	5.2 Direct Indication of Virtual Size
	5.3 When to Use MMR, LMR, and RFS
	5.4 The MMR and LMR Requirements in the ASME Standards
	References
6 Datums and Datum Systems
	6.1 Datum Systems
		6.1.1 Association of Datums
		6.1.2 Datum: Mathematical Concepts
	6.2 Indication of Datum Features in Technical Documentation
	6.3 The Datum Systems in ASME Y14.5
		6.3.1 Establishing a Datum
		6.3.2 Location of a Workpiece in a Datum Reference Frame
		6.3.3 Selection of Datum Features
	6.4 Examples of Datum Systems in the ISO Standards
		6.4.1 Datum System with Three Single Datums
	6.5 Type of Datum
		6.5.1 Center Planes (Width-Type Features of Size)
		6.5.2 Common Datum
		6.5.3 Conical Surfaces as Datum Features
	6.6 Datum Features Referenced at MMR and LMR (Size Datum)
	6.7 Locked or Released Degrees of Freedom from a Datum
		6.7.1 Customised Datum Reference Frame in the ASME Standards
	6.8 Datum Targets
		6.8.1 Contacting Feature
		6.8.2 Datum Targets in the ASME Standards
	References
7 Form Tolerances
	7.1 Introduction
	7.2 Straightness Tolerance
		7.2.1 Straightness Parameters
		7.2.2 Straightness Tolerance Applied to a Feature of Size
		7.2.3 Straightness Tolerance in the ASME Standards
	7.3 Flatness Tolerance
		7.3.1 Flatness Parameters
		7.3.2 Flatness Control
		7.3.3 Flatness Tolerance in the ASME Standards
	7.4 Roundness
		7.4.1 Roundness Parameters
		7.4.2 Roundness Tolerance in the ASME Standards
	7.5 Cylindricity
		7.5.1 Cylindricity Parameters
		7.5.2 Cylindricity Tolerance in the ASME Standards
	References
8 Orientation Tolerances
	8.1 Introduction
	8.2 Parallelism
		8.2.1 Parallelism of a Median Line Related to a Datum System
		8.2.2 Parallelism of a Set of Lines on a Surface Related to a Datum Plane
		8.2.3 Parallelism of a Planar Surface Related to a Datum System
	8.3 Perpendicularity
		8.3.1 Perpendicularity of a Median Line Related to a Datum System
		8.3.2 Perpendicularity of a Median Line Related to a Datum Straight Line
		8.3.3 Perpendicularity of a Median Line Related to a Datum Plane
		8.3.4 Perpendicularity of a Planar Surface Related to a Datum Plane
		8.3.5 Perpendicularity (MMR) Applied to a Feature of Size
	8.4 Angularity
		8.4.1 Angularity of a Median Line Related to a Datum Straight Line
		8.4.2 Angularity of a Median Line Related to a Datum System
		8.4.3 Angularity of a Planar Surface Related to a Datum Plane
		8.4.4 Angularity (MMR) Applied to a Feature of Size
	8.5 Orientation Tolerances in the ASME Standards
	References
9 Location Tolerances
	9.1 Introduction
	9.2 Position Tolerances
		9.2.1 Position Tolerance Applied to Median Surfaces
		9.2.2 Choice of the Modifiers for Position Tolerances
		9.2.3 Pattern Location
		9.2.4 Calculation of a Geometrical Position Tolerance
		9.2.5 Projected Tolerance Zone
		9.2.6 Position Tolerances in the ASME Standards
	9.3 Concentricity and Coaxiality Tolerances
		9.3.1 Concentricity in ASME Y14.5
	9.4 Symmetry Tolerances
		9.4.1 Symmetry in ASME Y14.5
	References
10 Profile Tolerances
	10.1 Introduction
	10.2 Rules for Profile Tolerancing (ISO 1660:2017)
	10.3 Profile Interpretation
	10.4 Offset Tolerance Zone Specification
	10.5 Constraint Specification Elements
		10.5.1 Offset Tolerance Zone with an Unspecified Linear Offset
		10.5.2 Offset Tolerance Zone with an Unspecified Angular Offset
	10.6 Pattern Specification (ISO 5458:2018)
	10.7 The Tolerance of a Profile in the ASME Standards
		10.7.1 Mathematical Concepts
		10.7.2 Composite Profile Tolerancing
		10.7.3 Unilateral and Unequally Disposed Profile Tolerance
		10.7.4 Coplanarity
		10.7.5 The New Symbols (ASME Y14.5:2018)
	10.8 Profile Measurement
		10.8.1 Profile Measurement in ASME Y14.5.1:2019
	References
11 Run-Out Tolerances
	11.1 Introduction
	11.2 Circular Run-Out
		11.2.1 Concentricity Versus Circular Run-Out
	11.3 Total Run-Out
	11.4 Run-Out Control in the ASME Y14.5 Standards
		11.4.1 Run-Out on a Tangent Plane
		11.4.2 Run-Out Tolerance Application to an Assembly
	11.5 How to Inspect Run-Out Tolerances
	References
12 Geometrical Specification for Non-rigid Parts
	12.1 Non-rigid Parts
	12.2 The ISO 10579-NR Standard
	12.3 Non-rigid Parts in the ASME Y14.5:2018 Standard
	References
13 Linear Sizes
	13.1 Introduction
	13.2 The ISO 14405 Standards: Terms and Definitions
		13.2.1 ISO 14405-1: Linear Size
		13.2.2 ISO 14405-3: Angular Sizes
	13.3 Linear Sizes in the ASME Standards
		13.3.1 Evaluation of Actual Local Size
		13.3.2 Continuous Features of Size
	References
Bibliography
Index