Machining Rolling Mill Roll with CBN

White Iron Roll Machining

Application Example:

Component: Rolling Mill Roll (1 metre diameter x 3 metre long)

MachineTool: Craven Centre Lathe

Material: Chilled Cast Iron ( 55 Hrc)

Operation: Turning

Depth of Cut: 2 mm (0.08")

Insert: RNMN 120300T DR-100

Surface Speed: 100 m/min (330 ft/min) cutting without coolant

Feed Rate: 0.2 mm/rev (0.008"/rev)

Surface Finish: N/A

Tool Life: Average 40 minutes contact

Comments: Semi-finishing for grinder � machine not powerful enough for bigger cuts or feed rates

DR-100 has a high CBN content, 99%, and is supplied as solid I.S.O format indexable inserts for top clamp tool holders. PCBN cutting tools machine hardened steels with apparent ease because, using relatively high

surface speeds, heat is generated at the point of cutting so the PCBN tool cuts locally softened material.

For more information on machining with CBN Inserts
please visit David Richards Engineering UK or
David Richards Engineering US