Apparatus and method for making wheel rim blanks and the like

Electric heating – Metal heating – Of cylinders

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291591, 113116D, 219 1011, 219 61, 219101, 219160, B21H 110, B21K 138, B23K 3106, B23K 1302

Patent

active

040829359

ABSTRACT:
Wheel rim blank manufacturing apparatus comprises an elongated mandrel passing through Coiling, Welding and Machining Stations. Flat stock is fed transversely for coiling to cylindrical rim blanks about the mandrel. A transfer slide advances and maintains orientation of coiled rim blanks from the Coiling Station to the Welding Station. At the Welding Station clamps secure the blanks for resistance or high frequency current penetration welding. Internal clamps at the Welding Station have small shoulders for transferring the blanks past a Machining Station where a scarfing tool engages their welded areas. The method includes feeding stock transversely, coiling about a mandrel, advancing blanks along the mandrel, welding, again advancing the blanks, and machining weld areas.

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patent: 3552629 (1971-01-01), Armbruster et al.
patent: 3578935 (1971-05-01), Deane
patent: 3584178 (1971-06-01), Huber et al.
patent: 3610863 (1971-10-01), Doublet
patent: 3794805 (1974-02-01), Rudd
patent: 3934324 (1976-01-01), Hess et al.

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