ASME B89.1.13 pdf free download
ASME B89.1.13-2001 pdf free download.MICROMETERS.
This Standard is intended to provide the essential requirements for micrometers as a basis for mutual understanding between manufacturers and consumers. OuLside, inside, and depth micrometers are described in the Standard.
2 DEFiNITiONS
backlash: a relative movement between interacting mechanical parts, resulting from looseness [ASME B5.54M-l992 (R1998)J. In this Standard, backlash is further defined as the rotation of the spindle, in the opposite direction of the initial reading, before spindle moves in a linear direction. This condition is typically caused by looseness of fit between the lead screw and adjusting nut.
bias; systematic error of the indication of a measuring instrument (VIM).
eccentricity: the distance between the geomeiric center or axis of the body and its axis of rotation-
end shake: the amount of spindle movement, when an axial force is apphed in the direction of the spindle alternating towards the anvil and away from the anvil, without n*ating the spindle.
error (of indication) of a measuring instrument: indication of a measuring instrument minus a true value of the corresponding quantity (VIM).
NOW. This conce apihes mainly where Ihe insinimeM is compaied 10 5 rclerence Mandard,
flatness: the condition of a surface having all elements in one plane (ASME Y14,5M-1994).
maximum permissible error (MPE): extreme values of an error permitted by specifications, etc., for a given measuring instrument (VIM).
parallelism: the condition of a surface or center plane, equidistant at all points from a dalum plane or axis, equidistant along its length from one or more datum planes or a datum axis (ASME Yl4.5M- 1994).ru.ow: a composite tolerance used to control the functional relationship of one or more features of a part to a datum axis. The types of features controlled by runout tolerances include those surfaces constructed around a datum axis and those constiucted at right angles to a datum axis (ASME Y14.5M-1994).
side shake: the amount of spindle side movement, when a force is applied perpendicularly to the measuring end of the spindle, alternating from side to side, without rotating the spindle.
tolerance: the total amount the specified dimension is permined to vary. The tolerance is the difference between (he maximum and minimum limits (ASME
Y 14.SM- 1994).
3 REFERENCES
This Standard has been coordinated insofar as possible with the following standards.
ASME 8554M-1992 (R1998), Methods for Performance Evaluation of Computer Numerically Controlled Machine Centers
ASME Y l45M- 1994, Dimensiomng and Tolerancing
Publisher: The American Society of Mechanical Engineers (ASME International), Three Park Avenue, New York, NY 10016
IEEEJASTM SI 10-1997, Standard for Use of the
International System of Units (SI): The Modern
Metric System Revision and Redesignation of ANSI)
IEEE Std 268-1992 and ASTM E 380
Publisher: Institute of Electrical and Electronics Engineers (IEEE), 445 Hoes Lane, Piscataway, NJ 08854
ISO 3611. Micrometers Calipers for External Measurements, 1978
Publisher: International Organization for Standardization (ISO). I rue de Varembé. Case Postale 56, CH1121, Genêve 20. Switzerland/Sujsse.ASME B89.1.13 pdf download.
