Patent · US Expired

Method for producing a line-shaped weakening by means of lasers

US5882572A · kind A · utility

22Cited by

5References

4Claims

0Family size

Assignee

JENOPTIK GmbH · DE

Inventors

Walter Lutze · Jena, DE
Ralf Schwarze · Lüneburg, DE
Frank Schmieder · Plauen, DE
Wolfgang Schmidt
Rainer Schulze · Detmold, DE

Key dates

Filing date	Sep 5, 1997
Grant date	Mar 16, 1999
Priority date	—
Expiry date	Sep 5, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH05K3/0097
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method is described for producing a line-shaped weakening in a flat material by one-sided local removal of the flat material by controllable pulsed laser radiation. The occurring line-shaped weakening is not visible on the surface of the flat material that is not machined and has a reproducible constant breaking resistance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.