Trennkante

Trennkante, literally “separation edge,” is a term used in German technical discourse to denote the boundary along which two parts, materials, phases, or regions are separated. The concept emphasizes the line or interface created by a cutting, joining, or phase-separating operation and can refer to both the edge of a cut and the boundary between different substances.

Applications and contexts: In manufacturing and engineering, the Trennkante describes the edge produced when a workpiece is cut, machined, or perforated. The quality of this boundary—its straightness, burrs, roughness, and deviation from nominal geometry—affects fit, function, and post-processing such as deburring or coating. In materials science and polymer technology, the term can denote the boundary between distinct phases or components within a composite or multilayer structure. In geology or petrology, it may describe the contact line where different mineral domains meet within a rock, indicating a boundary of formation or alteration.

Measurement and quality control: The Trennkante is characterized by its geometry (straightness, angle), surface condition (burrs, roughness), and dimensional tolerance. Inspection methods include optical metrology, tactile profilometry, and microscopy. The management of Trennkante quality is an aspect of process control and influences manufacturing yield, assembly performance, and service life.