Method of manufacturing modified cross-section material
US5890389A · kind A · utility
5Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Oct 31, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B1/0805
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A modified cross-section material having a thin part and a thick part in its widthwise direction is manufactured through a plurality of roll stages. Each rolling stage comprises of a set of a convex roll and a flat roll, wherein the convex roll has a convex part. The thin part is formed in accordance with the lengthwise expansion by the convex part of the convex roll, and the thick part is formed in accordance with the lengthwise expansion by a part other than the convex part of the convex roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.