Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With means applying wave energy or electrical energy...
Patent
1975-02-21
1977-02-15
Van Horn, Charles E.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With means applying wave energy or electrical energy...
65 40, 65 59B, 118 495, 118620, 156537, 219 76, 219113, 219148, 228 25, 427 50, B23K 1126, C03C 2708, C23C 1308
Patent
active
040081176
ABSTRACT:
Bonds are made between two work pieces by using foils exploded by electrical energy typically stored in a large capacitor. To increase the uniformity of the bond area, a foil having at least one slit cut in the direction of current flow is used. The foil strips separated by the slit are attracted together by the pinch effect when current is applied, tending to eliminate loss of foil through a jetting action during explosion. Platings are made by pressing the foil between the work piece and a plastic layer to which the foil does not adhere. In both bonding and plating, the capacitor is charged with energy sufficient to bring the foil just to its boiling point. This "tuning" is more efficient and minimizes heat and blast effects that might otherwise damage a small work piece.
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Schiff, D. "Bonding Experiments with Exploding Foils", in Exploding Wires, vol. 1, Plenum Press, N.Y. (1959) pp. 283-287.
Keller, D. V. et al., "Exploding Foils-The Production of Plane Shockwaves and the Acceleration of Thin Plates" in Exploding Wires vol. 2, Plenum Press, New York (1962) pp. 263-277.
Rouse, C. A. [ed.], Progress in High Temperature Physics and Chemistry, vol. 2, Pergamon Press, N.Y. (1968) pp. 35-38.
Woffinden, G. J. "Exploding Metal Films" in Exploding Wires, vol. 3, Plenum Press, New York (1964) pp. 193, 198-199, 204-205.
Bell Telephone Laboratories Incorporated
Freedman Barry H.
Van Horn Charles E.
Wityshyn M. G.
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