Method of manufacturing solid wheel rims

Details Method of manufacturing solid wheel rims Method of manufacturing solid wheel rims

1977-06-01

1978-11-28

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

291591, 113116D, B21D 5330

Patent

active

041270223

ABSTRACT:
A method of manufacturing a solid wheel rim having a wheel-rim flange at one end of a wheel-rim base and a spring-ring groove at an opposite end of the base, from a rolled and longitudinally welded sheet metal ring of a predetermined inner diameter having a reduced wall thickness over at least a part of its length, includes the expansion of a portion of the ring to produce an annular groove zone having an inner diameter equal to the predetermined inner diameter, an enlarged zone having an inner diameter greater than such predetermined diameter, and a tapered zone located between the annular groove and enlarged zones, the wall thickness of the ring being reduced during a pressing operation, and forming the spring-ring groove and the wheel-rim flange upon application of pressure. The pressing operation and the applications of pressure may constitute a single working operation, or may be carried out by using first, second and third presses, respectively. SU

REFERENCES:
patent: 3846886 (1974-11-01), Schroder et al.
patent: 4050135 (1977-09-01), Luedi

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