Bent structure comprising outer metal sheets in a soft W conditi

Details Bent structure comprising outer metal sheets in a soft W conditi Bent structure comprising outer metal sheets in a soft W conditi

1990-09-05

1993-02-09

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428245, 428246, 428289, 428290, 428294, 428416, 428418, 428457, 428458, 428461, 428902, B32B 1504, B32B 1508, B32B 2700, B32B 700

Patent

active

051851989

ABSTRACT:
To improve forming properties of laminated structures comprising two sheets of a non-ferrous metal alloy connected by an adhesive, which hardens at heating and between which an adhesive layer is bonded to the metal sheets, a new sequence of heat treatments is proposed. The alloy of the sheets is in soft condition before the sheets are bonded to each other. The bonding temperature and time are selected such that it remains substantially in soft condition and only after forming further heating is applied to obtain hardening of the alloy sheets.

REFERENCES:
patent: 4489123 (1984-12-01), Schijve et al.
patent: 4500589 (1985-02-01), Schijve et al.
patent: 4749625 (1988-06-01), Obayashi et al.
patent: 4935291 (1990-06-01), Gunnink
patent: 5030488 (1991-07-01), Sobolev

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