Repair of flight bars

Details Repair of flight bars Repair of flight bars

1989-07-28

1991-01-29

Heinrich, Sam

Metal fusion bonding

Process

Repairing, restoring, or renewing product for reuse

228170, 228165, 29DIG73, 2940213, B23K 3102

Patent

active

049880330

ABSTRACT:
A method of reparing a worn flight bar is accomplished by first removing by torch cutting the worn ends of the flight bar. Replacement endpieces having an outer surface profile matching that of a new flight bar and an inner face configured to match the cut face of the flight bar ends are secured thereto by welding. Each profiled replacement endpiece is preferably formed by drop forging and contains welding chamfers and seating lands formed around the inner face thereof to insure strong weld joints and reproducible dimensional accuracy.

REFERENCES:
patent: 1406110 (1922-02-01), Troutner
patent: 3145461 (1964-08-01), Mattingly
patent: 3243874 (1966-04-01), Royer
patent: 3755877 (1973-09-01), Thompson
patent: 4059884 (1977-11-01), Weill
patent: 4478425 (1984-10-01), Benko
patent: 4819990 (1989-04-01), Breuer et al.

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