Cutting – Rotatable disc tool pair or tool and carrier – Tool pair comprises rotatable tools
Patent
1989-06-20
1990-11-27
Yost, Frank T.
Cutting
Rotatable disc tool pair or tool and carrier
Tool pair comprises rotatable tools
83505, 83675, B23D 1904
Patent
active
049727508
ABSTRACT:
The present invention concerns a blade construction (10) for use in longitudinally cutting (in slicing) material webs, such as various paper and cardboard webs, films and recorder tapes, etc., with said cutter a material web being longitudinally parted into partial webs, the cutter consisting of a blade construction (10) comprising one or several blade pairs (11,12). On the edge (13) of a first blade (11), and similarly on the edge (15) of a second blade (12), has by grinding been produced a micro-rounding, and on the apex of the first blade (11) has been produced a bead (14). The radius (r) applied in micro-rounding is advantageously within 0.5-.mu.m, and the dimension of the bead is advantageously within 0.1-1 mm.
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Smith Scott A.
Valmet Paper Machinery Inc.
Yost Frank T.
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