Method for joining components
AssigneeROLLS-ROYCE plc
InventorsDaniel Clark, John R Webster
Life of this patent
Estimating the term…
Abstract
A method for joining components comprises locating a region, such as an end region 24, of a shape memory alloy (SMA) material component 10 adjacent to a further component 12, and generating localized plastic deformation of the aforesaid region to create a joint between the components 10, 12. The localized plastic deformation of the shape memory alloy material component 10 is preferably generated by applying a shock load to the shape memory alloy material component 10.
Claims18
A method for joining components, the method comprising:
- locating an end region of a shape memory alloy material component adjacent to a further component;
- generating localised plastic deformation of said end region of the shape memory alloy material component to create a joint between the components, wherein the localised plastic deformation is generated by applying a shock load in a direction toward said end region of the shape memory alloy material component located adjacent to the further component at ambient temperature;
- and
- generating localised high intensity shear zones or adiabatic shear bands in the shape memory alloy material component to generate said localised plastic deformation.
A method for joining components, the method comprising:
- locating a region of a shape memory alloy material component adjacent to a further component;
- and
- generating localised plastic deformation of the aforesaid region of the shape memory alloy material component to create a joint between the components, wherein the method comprises providing a curved connection portion on the further component prior to the step of generating said localised plastic deformation and providing a spacing member between the curved connection portion and the shape memory alloy material component prior to generating said localised plastic deformation of the shape memory alloy material component.
A method for joining components, the method comprising:
- locating a region of a shape memory alloy material component adjacent to a further component;
- and
- generating localised plastic deformation of the aforesaid region of the shape memory alloy material component to create a joint between the components, wherein the method comprises providing a curved connection portion on the further component prior to the step of generating said localised plastic deformation and providing an anti-galling material between the curved connection portion and the shape memory alloy material component prior to generating said localised plastic deformation to define a hinged joint between the shape memory alloy material component and the further component after the step of generating said localised plastic deformation.
A method for forming an actuator for a gas turbine engine, the actuator including a first actuator component and a second actuator component, the method comprising:
- locating a region of said first actuator component comprising a shape memory alloy adjacent to said second actuator component;
- and
- generating localised plastic deformation of said shape memory alloy region of said first actuator component to create a joint between said first actuator component and said second actuator component, wherein the localised plastic deformation is generated by applying a shock load to the region of shape memory alloy of the first actuator component located adjacent to the second actuator component at ambient temperature.
Dependencies are inferred from the claim text.