The Technical and Commercial Potential of an Incremental Ring Rolling Process

Towards a steady forming condition for radial–axial ring rolling

“…So D 0 equals to d 0 +2b 0 , and h 0 can be calculated by Eq. (28). In summary, the needed input parameters for the application of the steady forming condition for RARR in this case study are listed in Table 2.…”

“…Casotto et al [25] presented a thermo-mechanicalmetallurgical numerical model to predict geometrical distortions of rings during cooling phase after ring rolling operations. With the development of NC ring rolling mills, flexible or incremental ring rolling processes [26][27][28][29] have become an important innovative direction needed to be extended widely.…”

A Review on Micro Formings

“…Long process times and high process cost are disadvantages of these methods (Berns H, 1993) while it is perfect method for microstructure by continuous local plastic deformation (Dongsheng Qian, 2013). Ring rolling process which allows a flexible near-net-shape forming of both hot and cold rings is presented by Allwood et al (Allwood J, 2007).…”

Incremental Bulk Metal Forming

“…The idea of flexible ring rolling dates back to work in the early 1980's at Hitachi Corporation in Japan [36] aimed at flexible production of railway wheels. This idea was applied in Aachen [37] for axial rolling, and a wide-ranging exploration of radial incremental ring rolling [38] included industry studies. Figure 9 shows schematics of the incremental processin both axial and radial configurations -in which a narrow mandrel can move with increased degrees of freedom to allow some flexibility.…”