ABSTRACT
Figures 13.19 and 13.20 illustrate the results of another edge rolling test with grooved rolls conducted by de Vathaire, et al [16]. This test indicated that the edging efficiency for both grooved and flat rolls generally increases with an increase in the width draft. This increase is minimal when the width draft is less than 50 mm (2.0 in.) and becomes very pronounced when the width draft exceeds 50 mm. The test also shows that the edging efficiency is greater for narrow slabs (Fig. 13.19). The application of grooved rolls may almost double the edging efficiency for narrow slabs in comparison with the edging efficiency obtained with the use of flat rolls (Fig. 13.20).
