Metal working – Expanded metal making
Patent
1990-12-28
1992-08-11
Eley, Timothy V.
Metal working
Expanded metal making
29 2, B21D 3104, H01M 3504
Patent
active
051367653
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 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 intermittent pattern of adjacent slits in a widthwise direction of the strip being offset from 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 in coacting meshing engagement with each other, each roll having a plurality of disk-shaped cutters; and a driving device for rotating the rolls. Each cutter has cutting edge portions and reliefs on a periphery thereof at predetermined pitches. The cutting edge portions of the cutters of the rolls form slits defining strip-shaped lift portions while the reliefs leave the connecting portions connecting the strip-shaped lift portions to each other.
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patent: 4921118 (1990-05-01), Gass
Goda Yoshio
Inanobe Akira
Kobayashi Hiroyuki
Tanaka Mashiro
Eley Timothy V.
Matsushita Electric - Industrial Co., Ltd.
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