Metal working – Expanded metal making
Patent
1992-05-22
1993-08-31
Eley, Timothy V.
Metal working
Expanded metal making
B21D 3104
Patent
active
052397351
ABSTRACT:
A method for manufacturing an expanded mesh sheet, includes the steps of: forming a plurality of slits on a strip at predetermined pitches to simultaneously form a plurality of strip-shaped lift portions and connecting portions for connecting the strip-shaped lift portions to each other in a lattice pattern, the slits each being intermittently formed in a longitudinal direction of the strip and the adjacent slits in a widthwise direction of the strip being shifted to each other in the longitudinal direction of the strip; and expanding the strip in the widthwise direction thereof. An apparatus for manufacturing the sheet, includes: a pair of rolls engaged to each other, each roll having a plurality of disk-shaped cutters; and a driving device for driving the rolls for rotation. Each cutter has a cutting edge portion and a relief on a periphery thereof at predetermined pitches to form slits, each of which extends in a longitudinal direction of the strip, on the strip by the cutting edge portions of the cutters of the rolls to form strip-shaped lift portions and to form a connecting portion for connecting the strip-shaped lift portions to each other on a position between the slits on an extending direction of the slits by the reliefs of the cutters of the rolls.
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Goda Yoshio
Inanobe Akira
Kobayashi Hiroyuki
Tanaka Masahiro
Eley Timothy V.
Matsushita Electric - Industrial Co., Ltd.
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