Method of producing corrugated fins

Details Method of producing corrugated fins Method of producing corrugated fins

1995-11-27

1998-06-02

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Included in plural deforming stations or passes

72 92, B21D 1304

Patent

active

057585350

ABSTRACT:
A method of producing corrugated fins employing a fin mill machine (12) for forming strip stock (14) into corrugated fins (16) to form heat exchanger fins or the like. A fin mill machine (12) that can carry out the method includes a tension control subsystem (20) employing a pneumatic cylinder (32) to create the tension which is controlled by a feedback loop which automatically adjusts cylinder pressure based upon measurements from a strain gauge (44). The fin mill machine also includes a height measurement subsystem (22) which continually measures the average height of the fins in a packed state, which allows for manual or automatic feedback to the tension subsystem (20) to adjust the average fin height.

REFERENCES:
patent: 2975817 (1961-05-01), Neff
patent: 3367161 (1968-02-01), Avakian
patent: 4033492 (1977-07-01), Imai
patent: 4059000 (1977-11-01), Bodnar
patent: 4753096 (1988-06-01), Wallis
patent: 4953378 (1990-09-01), Wallis
patent: 5022161 (1991-06-01), Gray et al.
patent: 5207083 (1993-05-01), Bongiovanni et al.

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