Patent · US Expired

Arrangement for machining a workpiece by means of a laser beam

US4866244A · kind A · utility

1Cited by

7References

7Claims

0Family size

Assignee

Carl Zeiss Stiftung · DE

Inventors

Wolfgang Grimm · Bremen, DE
Heinz-Wilhelm Paysan · Warstein, DE
Hermann Schurle · Aalen, DE

Key dates

Filing date	Aug 29, 1988
Grant date	Sep 12, 1989
Priority date	—
Expiry date	Aug 29, 2008

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K26/16
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An arrangement for machining material by means of a laser beam includes a laser and an exit window mounted between the laser and the workpiece to be machined. The exit window is made of a highly-interlaced plastic to substantially prevent a contamination of the window by means of material splatterings during the machining operation. The highly-interlaced plastic has a high elasticity in microscopic regions. Such a window made, for example, from allyldiglocylcarbonate has a long service life which extends to several days in automatically operating equipment for spot welding with a laser beam.

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