Patent ID: 11867217
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  C  G | IPC C  F

Claim 9:
10. A thermally stabilized fastener (TSF) system comprising:
(a) fastener (FAS);
(b) fastener retention receiver (FRR); and
(c) mechanical member stack (MMS);
wherein:
said FAS comprises a fastener retention head (FRH), a fastener retention body (FRB), and a fastener retention tip (FRT);
said FRR comprises an engaging surface conforming to said FRT;
said MMS comprises a temperature compensating member (TCM) and at least a first retention member (FRM);
said FRB of said FAS is positioned pass through an aperture in said MMS;
said FRH and said FRR are configured to mechanically couple elements within said MMS via said FRB and said aperture;
said TCM comprises a metallic material having a tailored thermal expansion coefficient (TTC);
said TTC is selected to compensate for thermal expansion characteristics of said FAS and at least said FRM within said MMS such that force applied by said FRH and said FRR portions of said FAS to said MMS is tailored to a specific temperature force profile (TFP) over changes in temperature (ΔT) of said FAS and said MMS;
said TFP exhibits a change in said force (ΔF) in response to said ΔT that is proportional to said TTC of said TCM, such that selection of said TTC of said TCM serves to increase, not change, or decrease said ΔF upon increases or decreases in said ΔT;
said TCM is constructed by manufacturing a metallic material with a tailored thermal expansion coefficient in a selected range, comprising:
plastically deforming said metallic material by applying tension in a first direction;
wherein:
said metallic material prior to said plastic deformation substantially comprises a first phase;
said application of said tension transforms at least some of said first phase into a second phase;
subsequent to said tensile plastic deformation, said metallic material comprises a coefficient of thermal expansion within a selected range;
said coefficient of thermal expansion quantifies thermal expansion of said metallic material in at least one second direction;
said second direction is perpendicular or parallel to said first direction; and
said metallic material comprises at least one of:
NiTi, NiFeGa, or is at least one of:
characterized by a general formula NiTiX, wherein X is at least one of Pd, Hf, Zr, Al, Pt, Au;
characterized by a general formula NiMnX, wherein X is at least one of Ga, In, Sn, Al, Sb;
characterized by a general formula NiCoMnX, wherein X is at least one of Ga, In, Sn, Al, Sb;
and combinations thereof.