Roll forming method and device

Details Roll forming method and device Roll forming method and device

1996-07-16

1998-01-27

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 85, B21D 2216

Patent

active

057111740

ABSTRACT:
A roll forming method is used for forming an annular product with a radially outwardly extending flange portion at an end and includes steps of holding a center portion of a work for forming the annular product by a holding device, rotating the work, contacting a circumferential end portion of the rotating work with a forming roller to be pressed to form the flange portion while retaining a circumferential outer end of the work. The present invention is advantageous in that the resultant product has a good quality without deficiency, such as underfill of the material and has an improved toughness unlike a cast product, a product made by welding and the like of the same structure.

REFERENCES:
patent: 3262191 (1966-07-01), Albertson et al.

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