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:
May. 28, 2019
Filed:
May. 27, 2015
Lpkf Laser & Electronics Ag, Garbsen, DE;
LPKF Laser & Electronics AG, Garbsen, DE;
Abstract
A system for welding two parts to be joined made of thermoplastic synthetic materials along a weld seam by a laser operating with a laser beam having a beam direction within an operating field by a control method with control data corresponding to the weld-seam course to be produced, including a beam dimension in the region around its focus causing the welding, which is smaller in the joint plane than the target width of the weld seam to be produced, and is dependent upon the angle of incidence of the laser beam on the joint plane and/or upon the position of the focus relative to the joint plane, is displaced in a first movement component in a principal forward-feed direction along the track of the weld-seam to be produced, in a second, oscillating movement component superimposed over the former to cover the weld-seam width transversely to the principal forward-feed direction with an oscillation amplitude value, and is adjusted with a control method in its oscillation amplitude width in inverse dependence upon the beam dimension in the joint plane such that the width of the beam field covered by the laser beam in the transverse direction relative to the principal forward-feed direction corresponds to the target width of the weld seam.