device for heating at least two elements by means of laser beams of high energy density
US6608280B2 · kind B2 · utility
2Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2002 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | May 4, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0027
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and a device for joining or separating various workpieces, in particular made of plastic or plastic and other materials, by means of curtain-like laser beams. To join workpieces in a particular joining area of the contact surface, a mask, made of a laser-impermeable material, is arranged between the laser source and the workpieces to be joined. The laser beam and the mask are moved relative to each other. To generate high energy density in the joining area, laser beams of at least two diode lasers are brought together, and subsequently, differing laser line lengths are generated by means of a zoom optics arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.