Manufacturing Terms

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Coordinate Measuring Machine (CMM)

manufacturing

A Coordinate Measuring Machine (CMM) is a device used to measure the geometry of physical objects by sensing discrete points on the object’s surface with a probe.

expanded

Coordinate Measuring Machines (CMMs) are essential in manufacturing for ensuring the dimensional accuracy of parts, which is critical for components that need to fit precisely together. CMMs utilize a probe to contact or scan the surface of an object, capturing precise measurements that can be used for quality assurance and to verify mechanical properties against design specifications.

examples

A CMM measuring the dimensions of a turbine blade with a precision of ±0.002 mm (±0.00008 inches).

Used extensively in aerospace manufacturing to ensure turbine blades meet stringent safety and performance standards.

Verification of an automotive gearbox housing dimensions with tolerances up to ±0.01 mm (±0.0004 inches).

Utilized in automotive manufacturing to ensure critical components fit together seamlessly during assembly.

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