toorikule lõplikule kujule ligilähedase vormi andmine stantsimisega eelvaos enne vormstantsimist lõpp- e puhasvaos; operatsioon tagab stantsivao täitumise ja suurendab stantsi püsivusaega (vt eelvagu; vrd ettevalmistusstantsimine)
in forging, a preliminary operation performed in closed dies, usually hot, to position metal properly so that in the finish operation the dies will be filled correctly; this operation can ensure proper working of the material and increase die life (see: blocking impression; compare: preforming)
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