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:
Jan. 01, 2002
Filed:
Sep. 23, 1999
Yoshinori Nakata, Minamitsuru-gun, JP;
Atsushi Mori, Minamitsuru-gun, JP;
Tadashi Kurosawa, Minamitsuru-gun, JP;
Fanuc Ltd., Yamanashi, JP;
Abstract
A piercing nozzle ( ) having a nozzle hole ( ) larger than the diameter of a converged laser beam ( ) and smaller than the diameter of a hole ( ) of a cutting nozzle ( ) is in use. Further, an underlay ( ) having a hole ( ) at a position corresponding to the nozzle hole ( ) is placed under the piercing nozzle ( ) through a clearance ( ). Piercing is carried out by irradiating the laser beam ( ) to a machining target ( ) through nozzle holes ( ) and ( ) on condition that a laser oscillator is set to output high power. The diameter of a hole machined by the piercing is small, and less scattered dross is produced. The scattered dross is cooled down within the clearance ( ) and is then dropped down to the underlay ( ), so that the adhesion of the scattered dross to the machining target does not occur. Since a small hole is machined with the high power, the machining time for piercing is remarkably shortened.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile