Kiertokohde

Kiertokohde is a Finnish term that translates to "circular target" or "rotational target" in English. It refers to a measurement or marking device used primarily in the fields of engineering, manufacturing, and quality control to assess the roundness or concentricity of circular objects. The primary purpose of a kiertokohde is to ensure that manufactured components meet specified geometric tolerances, especially in applications where the precision of circularity is critical.

In practice, a kiertokohde is typically a precision instrument or template featuring concentric circles or marks. The object to be inspected is placed in relation to the kiertokohde, and deviations from the ideal shape are observed or measured. These deviations can indicate imperfections such as eccentricity or uneven wear, enabling technicians to make necessary adjustments or reject non-conforming parts.

The concept of kiertokohde is vital in industries like automotive, aerospace, and machinery manufacturing, where high-precision circular components such as shafts, gears, and bearings are common. By utilizing kiertokohde, quality assurance processes can achieve higher accuracy in ensuring components meet strict tolerance specifications, thus maintaining performance and safety standards.

While the term is primarily used within Finnish technical contexts, similar concepts and tools are employed worldwide under different names, such as roundness testers or circularity gauges. The use of kiertokohde underscores the importance of precision measurement in modern manufacturing processes, emphasizing the need for detailed inspection methods to maintain component quality.