滚剪机
滚切机
开槽铣刀
开片机

slitting \slit"ting\ (sl[i^]t"t[i^]ng),
a. & n. from {slit}.

{slitting file}. See Illust.
(i) of {sile}.

{slitting mill}.
(a) A mill where iron bars or plates are slit into narrow
strips, as nail rods, and the like.
(b) A machine used by lapidaries for slicing stones, usually
by means of a revolving disk, called a slicer, supplied
with diamond powder.

{slitting roller}, one of a pair of rollers furnished with
ribs entering between similar ribs in the other roller,
and cutting like shears, -- used in slitting metals.