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Precision engineering is a subdiscipline of
electrical engineering Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...
,
software engineering Software engineering is a branch of both computer science and engineering focused on designing, developing, testing, and maintaining Application software, software applications. It involves applying engineering design process, engineering principl ...
, electronics engineering,
mechanical engineering Mechanical engineering is the study of physical machines and mechanism (engineering), mechanisms that may involve force and movement. It is an engineering branch that combines engineering physics and engineering mathematics, mathematics principl ...
, and
optical engineering Optical engineering is the field of engineering encompassing the physical phenomena and technologies associated with the generation, transmission, manipulation, detection, and utilization of light. Optical engineers use the science of optics to ...
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 (manufacturing), boring, grinding (abrasive cutting), grinding, shearing, or other forms of deformations. Machine tools employ some s ...
s, MEMS, NEMS, optoelectronics design, and many other fields. Precision engineering is a branch of engineering that focus on the design, development and manufacture of product with high levels of accuracy and repeatability. It involves the use of advanced technologies and techniques to achieve tight tolerance and dimensional control in the manufacturing process.


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
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 Accuracy and precision are two measures of ''observational error''. ''Accuracy'' is how close a given set of measurements (observations or readings) are to their ''true value''. ''Precision'' is how close the measurements are to each other. The ...
* Flexures * Kinematic coupling * Measurement uncertainty * Kinematic determinacy


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 University