Bauteilend

Bauteilend is a term used in German engineering to describe the end portion or finishing surface of a component. It denotes the geometry, surface condition, and interface features located at the exposed end of a part and is relevant for both manufacturing and assembly. The concept encompasses end surfaces that must mate with other parts, seal, or receive fasteners, as well as end-related features such as chamfers, end caps, or flange interfaces.

In design and manufacturing, Bauteilend focuses on controlling the end geometry and surface quality to ensure proper fit, function, and durability. Typical considerations include end-face flatness, perpendicularity, and runout; the required surface finish (for example, roughness values, deburring, or protective coatings); and features at the end such as threads, grooves for seals, or locating surfaces. Finishing operations at the end of a part may involve deburring, chamfering, milling, turning, or lapping, depending on the application and required tolerances.

Quality assurance around Bauteilend involves documentation and measurement to verify that the end geometry complies with design specifications. Tolerances are specified in drawings, often using geometric dimensioning and tolerancing (GD&T) symbols, and verified with calipers, micrometers, profilometers, or coordinate measuring machines. Material choice and surface treatment at the end may also be governed by corrosion resistance, wear resistance, and compatibility with mating components or seal materials.

Applications of Bauteilend are widespread in mechanical engineering and manufacturing, including automotive housings, hydraulic and pneumatic cylinders, fastenered assemblies, and couplings. While not a formal standards term, Bauteilend serves as a practical shorthand in technical documentation to emphasize end-face quality and interface readiness.