Induction tacking method and apparatus

Details Induction tacking method and apparatus Induction tacking method and apparatus

1985-02-19

1987-03-17

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1053, 219 1073, 1562733, 1562742, 1563802, H05B 610

Patent

active

046509470

ABSTRACT:
Securing a ribbon of an expandable resin containing a heat activated blowing agent to a metal body, such as a sheet metal bow for the roof of a vehicle body, by bonding a portion of the ribbon to the body. The portion of the metal body immediately adjacent the ribbon is induction heated to transfer sufficient heat to the ribbon to bond it to the metal body without heating the bulk of the ribbon sufficiently to activate the blowing agent to expand the bulk of the ribbon into a foam resin. Subsequently, the metal body with the ribbon secured thereto is assembled with a panel and then heated to activate the blowing agent to produce a resin foam disposed between the metal body and panel.

REFERENCES:
patent: 3460310 (1969-08-01), Adcock et al.
patent: 3467806 (1969-09-01), Dixon
patent: 3580780 (1971-05-01), Klawunn et al.
patent: 3798403 (1974-03-01), Mitchell et al.
patent: 4501943 (1985-02-01), Lund

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