Method for producing ring members involving use of a...

Details Method for producing ring members involving use of a... Method for producing ring members involving use of a...

2005-12-27

2005-12-27

Jimenez, Marc (Department: 3726)

Metal working

Method of mechanical manufacture

Process for making bearing or component thereof

C029S898060, C072S364000

Reexamination Certificate

active

06978546

ABSTRACT:
A method for producing ring members, such as rings for rolling bearings, through use of a rolling operation involves warming a ring blank, positioning the warmed ring blank over a mandrel which is rotatable about a first axis, and positioning a forming roll rotatable about a second axis aligned with the first axis so as to form a rolling gap with the mandrel, with a portion of the ring blank being positioned in the rolling gap. The forming roll is driven to rotate in one rotary direction while the mandrel is driven to rotate in a rotary direction opposed to the rotary direction of the forming roll. During rotation of the forming roll and the mandrel, the mandrel is urged towards the forming roll to reduce the size of the rolling gap and thereby reduce the thickness of the ring blank while also increasing its diameter.

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