Severing by tearing or breaking – Methods – With preliminary weakening
Patent
1994-11-29
1996-03-05
Rada, Rinaldi I.
Severing by tearing or breaking
Methods
With preliminary weakening
225 4, 225 965, 225101, B32D 2100
Patent
active
054959721
ABSTRACT:
A method of cutting a flat tube (6) into unit pieces, which includes moving in a transverse direction rotatable disc cutters (12) with knife edges so as to cut the upper and lower walls of a flat tube to form a pair of cutting grooves (15) and fixing the flat tube at a point upstream of the cutting groove while flexing in the vertical direction a length of the flat tube downstream of the cutting grooves to break it off at the cutting grooves, thereby providing a unit piece of a predetermined length.
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Nishishita Kunihiko
Sugita Takashi
Rada Rinaldi I.
Zexel Corporation
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