Design, Specification and Tolerancing of Micrometer - Tolerance Assembles
Dennis A. Swyt
As increasing number of economically important products manufactured by U.S. companies are comprised of assemblies of macroscopic parts with microscopic tolerances, that is, parts from a few to hundreds of millimeters in size where the acceptable deviations from those dimensions are of the order of micrometers. Such micrometer-tolerance assemblies include not only the expected purely electronic products such as integrated circuits devices and hybrid electronic-mechanical produces such as magnetic memory read-write heads, but the less expected purely mechanical products such as magnetic memory read-write heads, but the less expected purely mechanical products such as elements of automobile combustion-engine, hydraulic-valve and fuel-injector systems. This paper reports examples of micrometer-tolerance assemblies, discussing design, specification and tolerancing (DS&T) strategies which some companies have adopted far manufacture of such assemblies, and identifies generic-technology, measurement and standards issues in DS&T associated with that manufacture.
Design, Specification and Tolerancing of Micrometer - Tolerance Assembles, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD
(Accessed February 27, 2024)