Method for laser beam heat treatment of press hardened components and press hardened components
US10533234B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2015 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Jul 21, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2221/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for manufacturing hot-stamped components are described. The method includes providing a hot-stamped component by hot forming die quenching, and selecting a first and a second portion of the hot-stamped component, wherein the first portion has a different width than the second portion. A laser system, wherein the laser system includes one or more optical elements and a laser source for generating a laser beam. The laser system is moved along a length of the component. Finally, the laser beam is applied in a single pass onto the selected first and second portions using the laser system, wherein a laser beam spot size is adjusted during the application of the laser beam and is adapted to the widths of the first and second portions, and wherein a power of the laser beam is regulated based on the temperature measured in the hot-stamped component. The disclosure further relates to components obtained using such methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.