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Dimensioning and Tolerancing

Principles for Gages and Fixtures


A Standard for Engineers Worldwide

Order Today:
ASME Y14.43-2011
Phone: 1.800.843.2763 / 1.973.882.1170
This Standard presents the design practices for dimensioning and Fax: 1.973.882.8113
tolerancing of gages and fixtures used for the verification of Maximum Email: customercare@asme.org
Web: www.asme.org/kb/standards
Material Condition (MMC) size envelopes and Virtual Condition
boundaries generated by Geometric Tolerances controlled at Maximum
ASME Y14.43-2011 Dimensioning and
Material Condition (MMC) and datum features controlled at Maximum Tolerancing Principles for Gages
Material Boundary (MMB). and Fixtures

Most of these practices focus on the design of receiver-type gages, ISBN: 9780791833483
which collect attribute data when used for the verification of work- No. Pages: 152
Digital Download (PDF) / Order No. N1701Q
pieces dimensioned and toleranced in accordance with ASME Print-Book / Order No. N17011
Y14.5-2009. These practices represent examples of product definitions
allowed by ASME Y14.5. Since ASME Y14.5 is not a gaging standard,
Y14.43 shows the practical embodiment of the theory displayed in
Y14.5 by illustrating how the workpieces could be fixtured and gaged
for tolerance verification.
Intended for design, drafting, mechanical, manufacturing, production,
tool/gage, quality, process and project engineers, CAD/CAM/CAE
ASME Codes and Standards
specialists, inspectors and educators across a broad range of global
manufacturing. Special emphasis on aerospace, automotive, medical ASME is the leading international developer of codes
and standards associated with the art, science, and
device, precision instrumentation and related industries. practice of mechanical engineering. Starting with the
first issuance of its legendary Boiler & Pressure
ASME Y14.43 is a foundational document for the creation Vessel Code in 1914, ASME’s codes and standards
of fixed gages that follow the principles of GD&T. In addition have grown to nearly 600 offerings currently in print.
to providing four levels of gaging, it gives explanations for To learn more, visit www.asme.org/Codes
each level. The distribution of tolerance between the
To volunteer on an ASME committee, visit
workpiece and gage is clear and precise. go.asme.org/ParticipateInStandards
This is an exceptional work that provides over 60 pages of
graphics showing over 20 workpieces and their respective
gages. Experienced users of GD&T will appreciate the added
depth of understanding that is provided by this standard.
— Jon D. Houck, GDT Professional, Senior Level
Woodward, Inc.

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