Mechanical Tolerance Stackup and Analysis - 2nd Edition
Bryan R. Fischer 2011
Tolerance Analysis based on ASME Y14.5M-1994, ASME Y14.5-2009, ASME Y14.41-2003, ISO 1101:2004, ISO 16792-2006, and other applicable ISO GPS Standards
Now in its second edition, "Mechanical Tolerance Stackup and Analysis" is the preeminent title on Tolerancing, Tolerance Analysis and Tolerance Stackups available today. "Mechanical Tolerance Stackup and Analysis" covers tolerance analysis based on plus and minus dimensioning and tolerancing and Geometric Dimensioning and Tolerancing (GD&T) methods. "Mechanical Tolerance Stackup and Analysis" covers tolerance stackups and tolerance analysis based on ASME Y14.5M-1994, ASME Y14.5-2009, and it covers tolerance stackups and tolerance analysis based on ISO dimensioning and tolerancing and ISO GD&T standards, including ISO 286-1, ISO 286-2, ISO 1101, ISO 5459, ISO 8015, etc. Mechanical Tolerance Stackup and Analysis presents the Advanced Dimensional Management Tolerance Analysis method in detail. The Advanced Dimensional Management Tolerance Analysis method is coordinated with our tolerance analysis software, the Advanced Dimensional Management Tolerance Stackup Software Toolset.
Mechanical Tolerance Stackup and Analysis is the definitive work on the subject of Tolerancing, Tolerance Stackups and Tolerance Analysis. Mechanical Tolerance Stackup and Analysis starts with fundamental concepts and terminology, explaining why tolerances must be specified, why variation exists and discusses its sources. The book then develops standardized tolerance analysis problem solving and analytical techniques using a logical, progressive approach, taking the reader through a series of tolerance stackup examples and tolerance stackup exercises increasing from very simple to complex. Mechanical Tolerance Stackup and Analysis stresses and explains the importance of Functional Dimensioning and Tolerancing, and provides examples that quantify and clearly show what happens when different dimensioning and tolerancing strategies are used. Indeed, the point of Mechanical Tolerance Stackup and Analysis is to present the methods for determining if a given tolerancing scheme will lead to functioning parts and assemblies and to present the best method to communicate the results. Mechanical Tolerance Stackup and Analysis and the Advanced Dimensional Management Tolerance Analysis method are important parts of a well-designed implementation of GD&T, Tolerance Analysis, and Dimensional Management.
Mechanical Tolerance Stackup and Analysis presents linear tolerance stackups on parts and assemblies dimensioned and toleranced using the traditional plus and minus system and parts and assemblies dimensioned and toleranced using Geometric Dimensioning and Tolerancing (GD&T). Tolerance stackups and tolerance analysis using GD&T are covered in greater depth, as GD&T is the only way to clearly specify the relationship of part features and ensure the part will function. For many readers, reading "Mechanical Tolerance Stackup and Analysis" helps to complete their understanding of GD&T. Our students tell us that our tolerance analysis training based on "Mechanical Tolerance Stackup and Analysis" complements their understanding of the GD&T gained from our GD&T training courses.
Worst-case tolerance analysis, statistical tolerance analysis, and alternative tolerance analysis methods are presented. Most of the tolerance stackup examples and tolerance stackup exercises are solved using worst-case tolerance analysis and statistical tolerance analysis techniques, allowing the reader to compare the results and gain a better understanding of their pros and cons. Background material is presented for the statistical techniques, and general guidelines are offered regarding the factors that must be in place for these techniques to be valid. The tolerance analysis techniques presented in Mechanical Tolerance Stackup and Analysis are easy to learn and easy to use. These methods are also more straightforward and more flexible than other methods encountered in industry.
The text stresses the importance of a standardized approach to solving Tolerance Stackup problems and the importance of a standardized tool for reporting the results. Extensive coverage is included on the Tolerance Stackup Report Form and the Tolerance Stackup Sketch, both of which are critical elements to solving Tolerance Stackups and reporting the results.
The material in Mechanical Tolerance Stackup and Analysis is coordinated with and explains how to use our Tolerance Stackup Software Toolset, the Tolerance Analysis software offered by Advanced Dimensional Management.
The ways that part and assembly geometry affect a tolerance stackup are discussed, as are the effects of the assembly sequence / process. The reader is taken through a series of examples comparing how geometric effects are compounded is certain situations, leading to greater variation than expected.
Our two Tolerance Analysis books Mechanical Tolerance Stackup & Analysis and Tolerance Stackup, Tolerance Analysis and Tolerancing Manual: Plus and Minus Edition are the definitive professional references on Tolerance Analysis available. When combined with their accompanying workbooks, these texts are suitable for use a college textbook or for industrial training. The material in Mechanical Tolerance Stackup & Analysis and Tolerance Stackup, Tolerance Analysis and Tolerancing Manual: Plus and Minus Edition is the result of many years experience, and the methods presented have been applied and tested in many industries on many products.
By using the principles and techniques illustrated in Mechanical Tolerance Stackup & Analysis and Tolerance Stackup, Tolerance Analysis and Tolerancing Manual: Plus and Minus Edition the student will be able to maximize their part tolerances and improve their designs, leading to increased profits, decreased scrap, higher quality and increased market share.
- Dimensioning and Tolerancing (US Inch and Metric)
- Tolerance Format and Decimal Places
- Converting Plus/Minus Dimensions and Tolerances into Equal-Bilaterally Toleranced Dimensions
- Variation and Sources of Variation
- Tolerance Analysis Worst-Case
- Tolerance Stackups
- Statistical Tolerance Stackups
- Geometric Dimensioning and Tolerancing (GD&T) in Tolerance Analysis
- Converting Plus / Minus to Positional Tolerancing and Projected Tolerance Zones
- Diametral and Radial Tolerance Stackups
- Specifying Material Condition Modifiers and Their Effect on Tolerance Stackups
- The Tolerance Stackup Sketch
- The Tolerance Stackup Report Form
- Tolerance Stackup Direction and Tolerance Stackups with Trigonometry
- Putting it All Together Tolerance Stackups with GD&T Solved Using the Advanced Dimensional Management Tolerance Analysis Method
- Calculating Component Tolerances Given a Final Assembly Tolerance Requirement
- Floating Fastener and Fixed Fastener Formulas and Considerations
- Limits and Fit Classifications
- Form Tolerances in Tolerance Stackups
- 3D Tolerance Analysis, 3D Tolerance Analysis Software, and Introduction to Six Sigma Concepts
Additional Search Features
Bookmark the following links to PDF and HTML versions of the index of the first edition of Mechanical Tolerance Stackup & Analysis. Although a printed copy of the index is included in each copy of the book, you may download the PDF version of the index to allow dynamic keyword searching of the text.
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All of our Courses and Training Materials are coordinated. Our Books and Materials are leading-edge and represent the latest thinking on these topics. We are members of several national standards committees, regularly attending meetings to help improve and contribute to the next generation of the standards.
Tolerance Stackup Software Toolset (for GD&T and Plus and Minus, ASME and ISO)
We offer a set of customized Tolerance Analysis Spreadsheet Tools for solving tolerance analysis and tolerance stackup problems. These easy-to-use Tools are flexible and very powerful decision making aids, and are excellent tools for communicating the results of a Tolerance Stackup. Results are presented in a standardized, easy-to-read Tolerance Stackup Report Format. Each of the Tools is accompanied by a set of instructions for use.
Click here for more information about our Tolerance Stackup Software Toolset.
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Bryan R. Fischer, President of Advanced Dimensional Management LLC, is an internationally recognized author, expert, ASME Certified Senior Level GD&T Professional and a member of many international ASME and ISO standards committees involved with GD&T, 3D processes, STEP and other engineering standards. Bryan has written many books on GD&T, Tolerance Analysis, 3D MBD and Engineering Standards.
Advanced Dimensional Management LLC offers leading-edge Training and Consulting in Geometric Dimensioning and Tolerancing (GD&T), Tolerance Analysis, Dimensional Management, 3D Model-Based Definition and 3D Model-Based Enterprise, Design Quality and related topics to companies worldwide. We are experts in ASME and ISO standards.
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