Sisäänotto

Sisäänotto is a Finnish term used mainly in woodworking, metalworking, and construction to describe the process or result of inserting one component into a recess, bore, or opening in another component. The purpose is to create a secure fit, proper alignment, or a housing for the inserted part. The concept covers both the act of inserting and the resulting feature, which can resemble a recess joint or an internal cavity in various forms.

Methods for creating a sisäänotto include milling, routing, drilling, or sawing to form the necessary recess, groove, or bore. The piece that is inserted is then positioned into the opening and fixed by friction, adhesives, screws, dowels, snap-fit features, or other fasteners. The choice of method depends on factors such as material, load requirements, assembly sequence, and whether disassembly is needed.

Applications are broad and include furniture making and cabinetry, general joinery, metal fabrications, construction elements, and electronics or equipment housings. In practice, sisäänotto is used to improve alignment, conceal joints, or provide a dedicated space for components.

Considerations in design and manufacturing include tolerances and clearances to ensure a proper fit, material compatibility to avoid wear or corrosion, and the intended load direction to prevent failure at the interface. The technique is valued for providing clean, strong joins with relatively straightforward assembly, though it may require precise fabrication to achieve reliable results.