usinée

Usinée is the feminine form of the past participle of the French verb usiner, meaning to machine or to manufacture by cutting. In industrial contexts, the term describes processes that remove material to shape a workpiece; the masculine form is usiné, and the feminine form is used with feminine nouns such as pièce usinée. As an adjective, usinée can also function substantively in phrases like “pièce usinée.”

Use and scope: The designation usinée is commonly employed to distinguish parts produced by machining from those manufactured by other methods, such as casting, forging, or forming. Common machining processes include turning, milling, drilling, and grinding, often performed on numerical control (CNC) equipment. A “pièce usinée” implies a certain level of dimensional precision and surface quality relative to non-machined parts, with tolerances and finishes specified in technical documentation.

Linguistic notes: Because it agrees with the noun, usinée appears with feminine nouns (for example, une pièce usinée) and the masculine form usiné with masculine nouns (un composant usiné). In contracts or specifications, the term may appear in phrases such as “mécanique usinée” or “tolérances usinées” to denote machine-produced characteristics.

Related terms: Usinage (machining), usinier (machinist), and usinable (capable of being machined) are closely related in the same field of manufacturing and fabrication.