in the process of stamping or cutting out, the dies completely enclose the work-piece; in certain cases, however, a single metal die operating on only one part of the unworked piece is used; this die is then called a stamp and the operation is termed stamping, process for forcing metal, by impact or pressure, to fill the hollows of metal moulds called dies, plekist tasapinnaliste või ruumiliste toodete valmistamine pleki paksuse olulise muutmiseta. Kuni 15 mm paksust plekki stantsitakse külmalt, paksemat kuumutatakse. L. hõlmab lõikamist (tükeldamist, väljalõikamist, augulöömist), painutamist, sügavtõmbamist ja mitmesug. abioperatsioone (ääristamist, koostamist jt.).