Hybrid butt-lap joint, and method of production
AssigneeHis Majesty the King In Right of Canada, the Minister of Natural Resources
InventorZheng Chen
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Abstract
Lap joints and butt joints can be used for braze-welding metals together, particularly metal sheet materials. Disclosed herein are hybrid joints that include features of both lap joints and of butt joints, that are suitable for braze-welding together articles and workpieces, particularly sheets, composed of different metals including aluminum and steel. Methods for braze-welding such hybrid joints are also disclosed.
Claims21
A method for producing a hybrid butt-lap braze-welded joint between a steel workpiece and an aluminum workpiece, each of which comprise two faces and at least one edge surface, the method comprising the steps of:
- a) positioning the steel workpiece and the aluminum workpiece for edge-to-edge contact with one another, thereby to provide a steel/aluminum butt region between an edge of the steel workpiece and an edge of the aluminum workpiece;
- b) positioning a second aluminum workpiece flush across the steel/aluminum butt region on one side of the steel and aluminum workpieces, so that the second aluminum workpiece overlaps in contact both with a portion of one face of the steel workpiece and a portion of one face of the aluminum workpiece adjacent the steel/aluminum butt region;
- and
- c) braze welding along the steel/aluminum butt region, on a side of the steel and aluminum workpieces opposite the second aluminum workpiece.
Dependencies are inferred from the claim text.