Manufacturing and assembly of structures using shims

Details Manufacturing and assembly of structures using shims Manufacturing and assembly of structures using shims

2005-06-21

2005-06-21

Bryant, David P. (Department: 3726)

Metal working

Method of mechanical manufacture

With testing or indicating

C029S402060, C029S402190, C029S445000

Reexamination Certificate

active

06907651

ABSTRACT:
The invention relates to a method of assembling a structure, particularly those structures requiring very tight tolerances. The structure may be assembled by positioning shim material on at least part of a sub-structure, curing the shim material in situ, machining the cured shim material to a desired thickness, and then assembling outer layer parts to the sub-structure such that the shim material is situated between the substructure and the outer parts. The shim material may be machined to different thicknesses at different locations on the sub-structure, so that, when assembled, the outer layer parts together conform to a predetermined profile. This is especially advantageous in the manufacture of airframes, where the outer layer panels must provide a smooth surface to avoid unwanted aerodynamic effects.

REFERENCES:
patent: 3609116 (1971-09-01), Thomas et al.
patent: 4478915 (1984-10-01), Poss et al.
patent: 4861643 (1989-08-01), Scollard
patent: 5385050 (1995-01-01), Roberts

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