Method of producing a beam-like structural part having a core of

Details Method of producing a beam-like structural part having a core of Method of producing a beam-like structural part having a core of

1992-02-07

1993-03-16

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 465, 264 467, 264275, B29C 6722

Patent

active

051941996

ABSTRACT:
A structural part, such as a kinetic energy-absorbing beam for vehicle construction, formed of a hollow metal member produced from profiled members connected by application of heat and a prefabricated reinforcing core of light-weight material is produced by first providing the core with a shell of heat-foamable material, then completing the hollow member by welding, and finally subjecting the assembly to an immersion-coating operation with heat. The hollow member has local inward projections for positioning of the core, leaving open spaces which provide thermal insulation during the welding process and which are permeated by hot coating material during the immersion-coating, so that the shell is foamed and a positive, force-transmitting connection is provided between the core and the hollow member.

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