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US 2024/0052862 A1Published application
System and process for joining dissimilar materials and solid-state interlocking joint with intermetallic interface formed thereby
AssigneeBattelle Memorial Institute
InventorsScott A. Whalen, Kenneth A. Ross, M.D. Reza-E-Rabby, Yuri Hovanski
Life of this patent
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Abstract
A method for connecting two dissimilar materials having different melting points is described wherein a the materials are heated together to obtain plasticization of the lower melting point material within a prefigured geometry within a first material in such a way so as to form intermetallic features within a solid state joint.
Claims20
A method, comprising:
- engaging a first surface of a first material with a second surface of a second material, wherein:
- the first surface defines nested dovetail grooves in the first material;
- a first dovetail groove of the nested dovetail grooves defines a base and sidewalls in a vertical cross-section;
- and
- a second dovetail groove of the nested dovetail grooves defined within the base of the first dovetail groove;
- and
- friction stir welding the second material to create heat and form an intermetallic feature within the nested dovetail grooves of the first material.
4 more elements
A method for joining of aluminum to steel comprising the steps of:
- positioning a steel surface of a steel material defining a set of nested dovetail grooves therein in contact with an aluminum surface of an aluminum material of a thickness;
- and
- friction stir welding the aluminum material and the steel material with a friction stir welding tool that:
- plunges to a depth greater than the thickness of the aluminum;
- and
- enters at least one of the set of nested dovetail grooves to heat at least a portion of the steel material and at least a portion of the aluminum material to a temperature sufficient to plasticize and flow the aluminum material into the at least one of the set of nested dovetail grooves.
3 more elements
A method, comprising:
- engaging a first surface of a first material with a second surface of a second material, wherein:
- the first surface defines nested dovetail grooves in the first material;
- a first dovetail groove of the nested dovetail grooves defines a base and sidewalls in a vertical cross-section;
- and
- a second dovetail groove of the nested dovetail grooves defined within the base of the first dovetail groove;
- and
- friction stir welding the second material and the first material with a friction stir welding tool that:
- plunges to a depth greater than a thickness of the second material;
- and
- enters at least one of the nested dovetail grooves to heat at least a portion of the first material and at least a portion of the second material to a temperature sufficient to plasticize and flow the second material into the at least one of the nested dovetail grooves.
7 more elements
Dependencies are inferred from the claim text.