Method of joining titanium and titanium-based alloys to ferrous metals using tantalum
AssigneeLake Region Manufacturing, Inc.
InventorsAnthony Hausladen, Mark Steven Lewandowski, Ryan Bennett Sefkow
Life of this patent
Estimating the term…
Abstract
A method of joining, e.g., by fusion welding, titanium, and titanium-based alloys to ferrous metals, and the intermetallic weld pool created by practice of the method is described. The instant invention involves the use, inclusion or deployment of tantalum into the weld pool and upon cooling a weld, to create a surprisingly strong intermetallic bond, weld, or joint.
Claims17
A method of joining titanium, or a titanium-based alloy, to a ferrous metal to produce a strong ductile weld, comprising the steps of:
- placing at least one titanium or a titanium-based alloy workpiece in close proximity to a ferrous metal workpiece thereby defining a joint precursor;
- adding a quantity of tantalum substantially at the joint precursor;
- and
- fusion welding the joint precursor thereby producing a weld pool incorporating a portion of the at least one titanium, or titanium-based alloy workpiece, a portion of the ferrous metal workpiece, and a portion of the tantalum
- permitting the weld pool to cool and form a weld.
A method of joining a titanium-based alloy to a ferrous metal to produce a strong ductile weld, comprising the steps of:
- placing at least one nickel-titanium workpiece in close proximity to a stainless steel workpiece thereby defining a joint precursor;
- placing a tantalum workpiece at the joint precursor;
- and
- fusion welding the joint precursor thereby producing a weld pool incorporating the tantalum;
- permitting the weld pool to cool and to solidify producing a weld having enhanced joint or weld.
A weld pool consisting essentially of a fusion of nickel-titanium alloy, ferrous alloy and tantalum.
Dependencies are inferred from the claim text.