Metal deforming – With cutting – By composite tool
Patent
1991-08-22
1992-09-29
Crane, Daniel C.
Metal deforming
With cutting
By composite tool
72404, 7245313, 267119, 100259, 83879, B21D 2810, B21D 2820, B21D 2818
Patent
active
051505983
ABSTRACT:
An apparatus for scribing grain-oriented electrical steel strip has a movable die attached to a reciprocating drive and an opposite fixed die. A strip held between the two dies is scribed by the action of the movable die that is moved back and forth by the reciprocating drive. The fixed die positioned with the stroke of the movable die is supported by a plurality of cylinders connected to an accumulator whose pressure is preset to a level of the deformation resistance corresponding to the amount of deflection that varies with the depth of the impressions scribed on the strip.
REFERENCES:
patent: 1691667 (1928-11-01), Nilson
patent: 1773438 (1930-08-01), Rode
patent: 2242209 (1941-05-01), Dinzl
patent: 3426571 (1969-02-01), Hoffman
patent: 3728980 (1973-04-01), Fraze
patent: 4203784 (1980-05-01), Kuroki et al.
Sperry Vickers Industrial Hydraulics Manual, First Edition, Sep., 1970, Sperry Rand Corp., Troy, Michigan, pp. 12-13.
"Patent Abstracts of Japan" vol. 14, No. 77 (C-688) (4020), Feb. 14, 1990; Japanese Application No. 63-123875 (Nippon Steel).
"Patent Abstracts of Japan" vol. 9. No. 237 (C-305) (1960) JP-A-60-96719 (Kawasaki Seitetsu).
Ide Satoshi
Uchida Takayuki
Yamamoto Masahiro
Yumoto Atsushi
Crane Daniel C.
Nippon Steel Corp.
Nittetsu Plant Designing Corp.
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