公开(公告)号：US20160016258A1

公开(公告)日：2016-01-21

申请号：US14657534

申请日：2015-03-13

Applicant: GM Global Technology Operations LLC

Inventor： Huaxin LI ,  Martin HEFTER

IPC: B23K26/21 ,  B23K35/30 ,  B23K26/323

CPC classification number: B23K35/3033 ,  B23K26/28 ,  B23K33/008 ,  B23K2103/02 ,  B23K2103/04

Abstract: A weld is employed to join two components of a differential assembly. The weld has a centerline tilted towards one of the two components to generate a stress release packet at a weld root of the weld. In some arrangements, the two components are made of dissimilar materials such as iron and carburized steel, and a high nickel alloy wire is employed as the weld filler metal. The carburized layer on the steel is not removed before the welding process, such that the weld is formed as a mixture of iron, carburized layer from the steel component, and the weld filler metal.

Abstract translation: 使用焊接来连接差分组件的两个部件。 焊缝具有朝向两个部件中的一个倾斜的中心线，以在焊缝的焊接根处产生应力释放包。 在一些布置中，两个部件由诸如铁和渗碳钢的不同材料制成，并且使用高镍合金丝作为焊接填充金属。 在焊接过程之前，钢上的渗碳层不被去除，使得焊接形成为来自钢部件的铁，渗碳层和焊接填充金属的混合物。

公开(公告)号：US20140178188A1

公开(公告)日：2014-06-26

申请号：US13724943

申请日：2012-12-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Huaxin LI ,  Louis P. BEGIN

IPC: F01D5/30

CPC classification number: F01D5/3061 ,  F01D5/025 ,  F05D2220/40

Abstract: A turbine wheel and shaft assembly is provided for a turbocharger including a turbine wheel including a body portion supporting a plurality of blades on a first axial face thereof. A hub extends from a body portion on a second axial face. A shaft is welded to the hub at a weld location spaced from the second axial face. The weld location is spaced axially from the second axial face by a distance sufficient to provide a significant reduction in the residual stresses in the welded parts. This design is intended to mitigate turbine wheel imbalance problems.

Abstract translation: 涡轮机叶轮和轴组件设置用于涡轮增压器，涡轮增压器包括涡轮机叶轮，涡轮机叶轮包括在其第一轴向面上支撑多个叶片的主体部分。 轮毂从第二轴向面上的主体部分延伸。 在与第二轴向面间隔开的焊接位置处将轴焊接到轮毂。 焊接位置与第二轴向面轴向间隔一定距离，足以提供焊接部件中残余应力的显着减小。 此设计旨在减轻涡轮机轮胎不平衡问题。