Techniques and assemblies for joining components using solid retainer materials
The disclosure describes example techniques and assemblies for joining a first component and a second component. The techniques may include positioning the first and second component adjacent to each other to define a joint region between adjacent portions of the first component and the second component. The techniques may also include inserting a solid retainer material into the joint region through an aperture in one of the first component or the second component to form a mechanical interlock between the first component and the second component and sealing the aperture to retain the solid retainer material within the joint region. The solid retainer material includes at least one of a metal, a metal alloy, or a ceramic.
1. A method comprising:
positioning a first component and a second component adjacent to each other to define a joint region between adjacent portions of the first component and the second component;
inserting a solid retainer material into the joint region through an opening in one of the first component or the second component to form a mechanical interlock between the first component and the second component, wherein the solid retainer material comprises a solid retainer powder, and wherein the solid retainer material comprises at least one of a metal, a metal alloy, or a ceramic;
sintering the solid retainer material to form the mechanical interlock; and
sealing the opening to retain the solid retainer material within the joint region,
wherein the solid retainer material does not melt while forming the mechanical interlock.
2. The method of claim 1 , wherein the first component and the second component at least partially surround the mechanical interlock.
3. The method of claim 1 , wherein the solid retainer material comprises a plurality of solid retainer modules.
4. The method of claim 3 , wherein each solid retainer module of the plurality of solid retainer modules at least partially conforms to the joint region.
5. The method of claim 3 ,
wherein the mechanical interlock is a composite mechanical interlock, and
wherein the method further comprises:
inserting a binder into the joint region through the opening;
heating the binder to soften the binder; and
solidifying the binder around the plurality of solid retainer modules to form the composite mechanical interlock.
6. The method of claim 5 , wherein the composite mechanical interlock is configured to mechanically secure the first component relative to the second component.
7. The method of claim 5 , wherein the binder comprises a braze material having a lower melting point than the solid retainer material.
8. The method of claim 1 ,
wherein the mechanical interlock is a monolithic mechanical interlock, and
wherein the method further comprises:
inserting a binder with the solid retainer powder into the joint region through the opening; and
debinding the binder from the solid retainer powder to form a solid retainer material preform;
wherein sintering the solid retainer material comprises sintering the solid retainer material preform to form the monolithic mechanical interlock.
9. The method of claim 1 , wherein the solid retainer material comprises a Ni-based superalloy, a Co-based superalloy, or a Fe-based superalloy.
10. The method of claim 1 , wherein the first component and the second component comprise at least one of a metal, a metal alloy, or a ceramic-based material.