Precision engineering
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Precision engineering is a subdiscipline of electrical engineering,
software engineering Software engineering is a systematic engineering approach to software development. A software engineer is a person who applies the principles of software engineering to design, develop, maintain, test, and evaluate computer software. The term '' ...
, electronics engineering,
mechanical engineering Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, an ...
, and optical engineering concerned with designing machines, fixtures, and other structures that have exceptionally low tolerances, are repeatable, and are stable over time. These approaches have applications in
machine tool A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformations. Machine tools employ some sort of tool that does the cutting or shaping. All ...
s,
MEMS Microelectromechanical systems (MEMS), also written as micro-electro-mechanical systems (or microelectronic and microelectromechanical systems) and the related micromechatronics and microsystems constitute the technology of microscopic devices, ...
, NEMS,
optoelectronics Optoelectronics (or optronics) is the study and application of electronic devices and systems that find, detect and control light, usually considered a sub-field of photonics. In this context, ''light'' often includes invisible forms of radiat ...
design, and many other fields.


Overview

Professors Hiromu Nakazawa and Pat McKeown provide the following list of goals for precision engineering: # Create a highly precise movement. # Reduce the dispersion of the product's or part's function. # Eliminate fitting and promote assembly, especially automatic assembly. # Reduce the initial cost. # Reduce the running cost. # Extend the life span. # Enable the design safety factor to be lowered. # Improve interchangeability of components so that corresponding parts made by other factories or firms can be used in their place. # Improve quality control through higher machine accuracy capabilities and hence reduce scrap, rework, and conventional inspection. # Achieve a greater wear/fatigue life of components. # Make functions independent of one another. # Achieve greater miniaturization and packing densities. # Achieve further advances in technology and the underlying sciences.Venkatesh, V. C. and Izman, Sudin, ''Precision Engineering'', Tata McGraw-Hill Publishing Company Limited, 2007, page 6.


Technical Societies

*
American Society for Precision Engineering The American Society for Precision Engineering is a non-profit member association, founded in 1986, dedicated to advancing the arts, sciences and technology of precision engineering, to promote its dissemination through education and training, and i ...

euspen - European Society for Precision Engineering and Nanotechnology

JSPE- The Japan Society for Precision Engineering

DSPE - Dutch Society for Precision Engineering

SPETA - Singapore Precision Engineering and Technology Association


See also

* Abbe error * Accuracy and precision * Flexures *
Kinematic coupling Kinematic coupling describes fixtures designed to exactly constrain the part in question, providing precision and certainty of location. A canonical example of a kinematic coupling consists of three radial v-grooves in one part that mate with thre ...
* Measurement uncertainty *
Kinematic determinacy Kinematic determinacy is a term used in structural mechanics to describe a structure where material compatibility conditions alone can be used to calculate deflections. A kinematically determinate structure can be defined as a structure where, if ...


References


External links


''Precision Engineering'', the Journal of the International Societies for Precision Engineering and Nanotechnology
{{Authority control Mechanical engineering
Precision Engineering Centre at Cranfield UniversityHistory of Precision Engineering