Composite bar structures of interlocked multiple members

Details Composite bar structures of interlocked multiple members Composite bar structures of interlocked multiple members

1989-07-12

1991-12-24

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Intermediate article

428586, 428599, 428609, 428614, B32B 1502

Patent

active

050751751

ABSTRACT:
A composite bar structure is composed of at least outer and inner members extending parallelly in the longitudinal direction of the structure and joined mechanically at an interface therebetween in an interlocked. The structure is fabricated by forming a plurality of projections on the inner member over the entire interface, preparing the outer member in a tubular shape to readily encompass the inner member, relatively positioning the members to place the inner member within the outer member in telescoped state, and applying a constrictive compression force on the outer member so that it undergoes plastic deformation and reduction in diameter, whereby the projections bite into the inner surface of the outer member. The members are thus joined tightly to form the integral composite bar structure.

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