The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 1994
Filed:
Jan. 13, 1993
Applicant:
Inventors:
Assignee:
MAHO Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912183 ; 21912169 ; 21912171 ; 21912185 ;
Abstract
A process for precision control of a laser beam for machining workpieces while achieving high surface quality. The actual distance between a reference location and the workpiece surface is determined. A setpoint/actual value deviation between a predetermined setpoint distance and the actual distance measured is also determined. Control parameters are determined by a control unit in accordance with the setpoint/actual value deviation. The resulting control parameter outputs are coupled to a laser control unit to control the beam power of the laser. The disclosure also includes the apparatus for accomplishing the process.