Method for determining the stamping quality of profiled bar material
US10232420B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2014 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Jul 16, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2261/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for determining the stamping quality of profiled bar includes steps of: a) upstream of the rolling stand performing shaping, the initial speed VA of the starting product is determined and the initial diameter DA or initial cross-sectional area FA are determined contactlessly. b) After the rolling stand, the final speed VE of the end product is measured and the diameter DE or area FE of a virtual enveloping shell for the end product is determined contactlessly. c) The diameter DN of a virtual, round end product is determined contactlessly as DN=square root of (DA2*VA/VE) and/or the average cross-sectional area FNE of the end product (2) is determined contactlessly as FNE=FA*VA/VE. d1) The characteristic stamping variable PKG is calculated, and the characteristic stamping variable PKG is compared with a pre-set setpoint value PKGset. A device for carrying out the method is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.