Fabrication of panel structures having thin skin plate in vehicl

Details Fabrication of panel structures having thin skin plate in vehicl Fabrication of panel structures having thin skin plate in vehicl

1976-01-22

1977-11-22

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

52223R, B23P 1102, B23K 2802

Patent

active

040588831

ABSTRACT:
A panel structure is fabricated by stretching a skin plate with a tensile stress below the elastic limit stress thereof, securing this plate onto a framework with the plate under a constraining tensile stress and with portions thereof to which the constraining stress is not being fully applied being heated thereby to cause thermal expansion thereof, removing the constraining stress, and permitting the plate to cool and thereby to undergo thermal contraction and deformation, thereby producing tensile residual stress within the plate, whereby occurrence of welding deformations in the plate on the finished panel is prevented. Depending on the necessity, the skin plate may be prestretched with a stress exceeding the yield point thereof before the above described panel fabrication.

REFERENCES:
patent: 2110752 (1938-03-01), Wright
patent: 2342025 (1944-02-01), Watter
patent: 2441858 (1948-05-01), Watter
patent: 2685263 (1954-08-01), Barnes et al.
patent: 3082519 (1963-03-01), Ballentine et al.
patent: 3322190 (1967-05-01), Johnson

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