Method for riveting fins into bottom plate of heat...

Details Method for riveting fins into bottom plate of heat... Method for riveting fins into bottom plate of heat...

2006-04-19

2010-11-09

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

C029S890039, C029S505000, C029S509000, C165S080300, C165S185000

Reexamination Certificate

active

07827688

ABSTRACT:
A method for riveting fins into a bottom plate of a heat dissipating device is disclosed. A punching device has a plurality of weights each of which is formed as a thin sheet. The punching device is installed to a fixture; a plurality of fins are spaced with a predetermined gap; and a bottom plate is formed with a plurality of trenches for receiving the fins. The method comprising the step of: positioning the bottom plate at the fixture; inserting the fins into the trenches of the bottom plate; inserting the weights of the punching device into the fins so that each space between two fins has a weight; and punching a backside of the bottom plate by a puncher so that as the bottom plate moves; the weights collide with and deform portions of the bottom plate between the fins to rivet the fins into the bottom plate, firmly securing the fins in the bottom plate.

REFERENCES:
patent: 6758262 (2004-07-01), Kawabata et al.
patent: 6851186 (2005-02-01), Liang
patent: 7497013 (2009-03-01), Zaghlol
patent: 2005/0150633 (2005-07-01), Lee et al.

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