公开(公告)号：US10272524B2

公开(公告)日：2019-04-30

申请号：US14521198

申请日：2014-10-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hui-Ping Wang ,  Blair E. Carlson ,  Michael G. Poss ,  David A. Gatny ,  Perry G. Leggett

IPC: B23K26/26 ,  B23K26/32 ,  B23K26/067 ,  B23K35/28 ,  B23K26/06 ,  B23K26/08 ,  B23K26/242 ,  B23K26/211 ,  B23K103/10

Abstract: A method of laser welding aluminum alloy workpieces with dual laser beams arranged in a cross-beam orientation is disclosed. The method comprises directing dual laser beams, which include a first laser beam and a second laser beam, at and along a weld seam established between the aluminum alloy workpieces together with a filler wire. The first laser beam includes a first longitudinal axis and the second laser beam includes a second longitudinal axis. When arranged in the cross-beam orientation, a plane that intersects the first longitudinal axis and the second longitudinal axis of the first and second laser beams, respectively, forms a line where it meets the aluminum alloy workpieces that is oriented transverse to the weld seam.

公开(公告)号：US20160114428A1

公开(公告)日：2016-04-28

申请号：US14521198

申请日：2014-10-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hui-Ping Wang ,  Blair E. Carlson ,  Michael G. Poss ,  David A. Gatny ,  Perry G. Leggett

IPC: B23K26/26 ,  B23K26/14 ,  B23K35/28 ,  B23K26/06 ,  B23K26/08 ,  B23K26/32 ,  B23K26/067

CPC classification number: B23K26/26 ,  B23K26/0648 ,  B23K26/0676 ,  B23K26/0884 ,  B23K26/211 ,  B23K26/242 ,  B23K26/32 ,  B23K35/286 ,  B23K2103/10

Abstract: A method of laser welding aluminum alloy workpieces with dual laser beams arranged in a cross-beam orientation is disclosed. The method comprises directing dual laser beams, which include a first laser beam and a second laser beam, at and along a weld seam established between the aluminum alloy workpieces together with a filler wire. The first laser beam includes a first longitudinal axis and the second laser beam includes a second longitudinal axis. When arranged in the cross-beam orientation, a plane that intersects the first longitudinal axis and the second longitudinal axis of the first and second laser beams, respectively, forms a line where it meets the aluminum alloy workpieces that is oriented transverse to the weld seam.

Abstract translation: 公开了一种以双横向取向的双激光束激光焊接铝合金工件的方法。 该方法包括在铝合金工件与填充线之间建立的并且沿着焊缝之间引导包括第一激光束和第二激光束的双激光束。 第一激光束包括第一纵向轴线，第二激光束包括第二纵向轴线。 当以横梁方向布置时，分别与第一和第二激光束的第一纵向轴线和第二纵向轴线相交的平面形成线，其中它与铝合金工件相交，横向于焊缝 。

公开(公告)号：US20150202718A1

公开(公告)日：2015-07-23

申请号：US14162500

申请日：2014-01-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David Yang ,  David A. Gatny ,  Blair E. Carlson ,  Jeff Wang

IPC: B23K26/14 ,  B23K26/32

CPC classification number: B23K26/1437 ,  B23K26/037 ,  B23K26/142 ,  B23K2101/34 ,  B23K2103/08

Abstract: A system and method for stabilizing the molten pool in a laser welding operation by suppressing a laser-induced plume which occurs when zinc coated steels are laser welded. The plume is a result of vaporization of zinc, and the zinc vapor in the plume disturbs the molten pool and causes blowholes, spattering and porosity. The stabilization is achieved by applying a gas such as air through a nozzle to the weld area, where the gas has sufficient velocity and flow rate to blow the zinc vapor away from the molten pool. Dramatically improved weld quality results have been demonstrated. Configuration parameters which yield optimum results—including gas flow rate and velocity, and nozzle position and orientation relative to the laser impingement location on the steel—are disclosed.

Abstract translation: 一种用于通过抑制当镀锌钢板被激光焊接时发生的激光引起的羽流在激光焊接操作中稳定熔池的系统和方法。 羽流是锌蒸发的结果，羽流中的锌蒸气会扰乱熔池，造成气孔，飞溅和孔隙。 通过将诸如空气的气体通过喷嘴施加到焊接区域来实现稳定化，其中气体具有足够的速度和流速以将锌蒸气吹离熔池。 已经显示出显着改善的焊接质量结果。 公开了产生最佳结果的配置参数，包括气体流速和速度，以及相对于钢上激光冲击位置的喷嘴位置和取向。