Back to results
US 2006/0134450 A1Published application
Additives for improved weldable composites
OwnerDavid Sigler, Xiaohong Gayden +2inventors
InventorsDavid Sigler, Xiaohong Gayden, Yen-Lung Chen, James Schroth
Life of this patent
Estimating the term…
Abstract
The present invention is directed to additives for improved weldable composites. A metal composite structure (10) features two metal members (12) (14) sandwiching a viscoelastic layer (26) where the viscoelastic layer entrains carbide-forming, carbon trapping particles (28) that provide an effective inhibitor to carbon migration from the viscoelastic layer during welding.
Claims20
A weldable metal composite, comprising:
- a first metal member and a second metal member;
- a viscoelastic layer disposed between said first and second metal members, said viscoelastic layer including carbon trapping additives where said additives inhibit carbon pick up and migration of carbon containing moieties from the viscoelastic layer to the metal member during welding of the composite.
A weldable metal composite, comprising:
- a first metal member and a second metal member;
- a viscoelastic layer disposed between said first and second metal members, said viscoelastic layer including conductive particles that melt during welding and carbon trapping additives where said additives inhibit carbon pick up and migration of carbon containing moieties.
A method of making a sound damping metal composite for welding, comprising the steps of:
- selecting a first metal member formed of a metal selected from the group consisting of low carbon steel, interstitial free steel, bake hardenable steel, high-strength low-alloy steel, transformation induced plasticity, martensitic, dual-phase steel, stainless steel, titanium, titanium alloy, and alloys susceptible to carbide formation;
- selecting a second metal member formed of a metal selected from the group consisting of low carbon steel, interstitial free steel, bake hardenable steel, high-strength low-alloy steel, transformation induced plasticity, martensitic, dual-phase steel, stainless steel, titanium, titanium alloy, and alloys susceptible to carbide formation;
- and
- applying a viscoelastic layer between said first metal member and said second metal member, said layer including carbon trapping additives where said additives inhibit migration of carbon containing moieties from the viscoelastic layer to the metal members during welding of the composite.
1 more element
Dependencies are inferred from the claim text.