Koaxialitätsprüfung

Koaxialitätsprüfung, also known as coaxiality testing, is a metrological process used to verify the alignment of two or more features that are intended to share a common axis. This is a critical measurement in manufacturing and engineering, particularly for components where precise alignment is essential for proper function, such as engine parts, shafts, bearings, and optical systems. The goal of a koaxialitätsprüfung is to quantify any deviation from perfect alignment, often referred to as eccentricity or runout.

Several methods can be employed for koaxialitätsprüfung. Dial indicators or digital indicators mounted on stable bases are commonly used. These instruments are positioned to measure displacement as a component rotates. By comparing the readings at different points during rotation, the degree of misalignment can be determined. Coordinate Measuring Machines (CMMs) offer a more advanced and precise approach, capable of measuring multiple geometric features and calculating coaxiality with high accuracy. Laser measurement systems are also utilized for applications requiring non-contact measurement or over longer distances.

The interpretation of results from a koaxialitätsprüfung involves comparing the measured deviation against specified tolerances. If the deviation exceeds the acceptable limit, the component may be rejected or require rework. Maintaining coaxiality is vital for reducing wear, vibration, and energy loss in mechanical systems, and for ensuring the accuracy and performance of optical and electronic devices. Therefore, robust koaxialitätsprüfung procedures are integral to quality control in many industries.