IPC Subgroup
B21B 19/1 Finishing, e.g. smoothing, sizing
Introduced: September 1968
Last revised: January 2006
Full Title
Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work > the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling > Rolling hollow basic material > Finishing, e.g. smoothing, sizing
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- Subclass:
- ROLLING OF METAL
Related Keywords
FINISHING of metal tubes by rolling