Are you curious about how the process of producing rolled ring forgings works and the techniques that are used for creating bearing rings? It starts with the piercing of a circular preform of metal in order to make a ring-like structure. When this is formed, the ring is heated and rotated until its desired wall thickness and diameter are achieved.
Cold Ring Rolling (CRR)
This refers to the advanced rotary forming technique that’s used to manufacture seamless rolled ring forgings under room temperature via the CRR mill. The main CRR mill has a mandrel part that makes linear feed, the main roll part that creates active rotation, a measured roll that measures the ring’s diameter, a guide roll that moves according to ring’s expansion, a frame part, and a power and control system. During this process, a blank or a pre-turned ring is rolled between two rolls that may have specific profiles or may have no shape. The rolling process ends when the ring’s diameter meets the target value.
Hot Radial Ring Rolling (HRRR)
This advanced ring rolling technique is typically used for manufacturing medium-scale bearing ring under high temperature via the HRRR mill. During the rolling process, the HRRR mill’s main roll part makes the active rotation as well as the linear feed while its mandrel part creates passive rotation. Its guide roll’s placement is fixed at the main roll’s exit side while the signal roll can be found at the opposite side of the guide roll. The ring rolling process ends when the ring’s diameter touches the guide roll.
Learn More About Rolled Ring Forgings!
For more information about rolled ring forgings and its various applications, contact Ferralloy, Inc. today!