valtsimine tingimustes, kus nurk valtside pinna ja tooriku teljesuunaliste kiirusvektorite vahel kontaktpinna punktis moodustab 90° (vrdl pikivaltsimine; kaldvaltsimine), a type of rolling of metal or sheet or plate so that the direction of rolling is about 90 degrees from the direction of a previous rolling; in this process, both rolls rotate in the same direction and the bar is fed transversely between rolls (compare: longitudinal rolling; helical rolling)