Vehicle axle and method and apparatus for manufacturing the...

Details Vehicle axle and method and apparatus for manufacturing the... Vehicle axle and method and apparatus for manufacturing the...

2006-05-16

2006-05-16

Hong, John C. (Department: 3726)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S428000, C464S179000

Reexamination Certificate

active

07043818

ABSTRACT:
A vehicle shaft has a rigid intermediate portion with a shaft journal welded to each of the two ends of the shaft portion. The shaft journal and/or the intermediate portion are/is provided with a material thickness reduction within a distance a from the contact surfaces which is less than substantially half the material thickness at the contact surfaces, in order to guide the force flow thorough the weld seam. During manufacture of such vehicle shafts, the mutually abutting contact surfaces are laser-welded to form a weld seam which can fully penetrate the material of the shaft journals and the intermediate portion respectively, whereby the concentricity and parallelism of the two journals will be within predetermined dimensional tolerances after the welding and cooling of the material. The arrangement has an induction heater which surrounds the shaft journal and is movable axially so that, after completion of heating, it moves to free the shaft journals welded to the shaft portion.

REFERENCES:
patent: 1613592 (1927-01-01), Smith
patent: 3673888 (1972-07-01), Moll et al.
patent: 3715935 (1973-02-01), Ebey
patent: 4048466 (1977-09-01), Toth et al.
patent: 0 780 274 (1997-06-01), None
patent: 1 053 822 (2000-11-01), None

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