Title:
脆い材料から作られた平らな加工物を切断するための方法及び装置
Document Type and Number:
Japanese Patent JP3687070
Kind Code:
B2
Abstract:
The method of making a freeform cut on a work piece made of brittle material, such as glass, includes producing a linear focal point from a laser beam and a cold spot following the linear focal point on the work piece so that at least 60 percent of a laser beam energy output is concentrated at opposite ends of the linear focal point; moving the linear focal point along a specified contour for forming the cut and adjusting a length of the focal point according to a contour line curvature, so that the opposite ends lie on the contour, even when the contour is curved, in order to make the freeform cut. The device for performing this method includes a numerical trajectory control device (4) for positioning the linear focal point as it moves along the contour and a profile control device (3) cooperating with the numerical trajectory control device (4) for controlling a length (S) of the linear focal point (1).
More Like This:
Inventors:
Hower, Dirk
Hetzel Bernd
Hetzel Bernd
Application Number:
JP2001543456A
Publication Date:
August 24, 2005
Filing Date:
December 07, 2000
Export Citation:
Assignee:
Carl-Zeiss-Stiftung
International Classes:
B23K26/00; B23K26/04; B23K26/40; B28D5/00; C03B33/04; B28D1/00; C03B33/09; (IPC1-7): B28D5/00; B23K26/04; B23K26/40; C03B33/09
Domestic Patent References:
| JP9012327A | ||||
| JP11021141A |
Attorney, Agent or Firm:
Tadashi Hamamoto
Yoshiaki Sato
Yoshiaki Sato
Previous Patent: OPTICAL FIBER FOR DECORATION
Next Patent: CARBURETOR FOR CRANKCASE SCAVENGING TYPE TWO-STROKE ENGINE
Next Patent: CARBURETOR FOR CRANKCASE SCAVENGING TYPE TWO-STROKE ENGINE