Patent ID: 11892023
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  C  G | IPC C  F

Claim 27:
28. 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 a metallic material comprising a first thermal expansion coefficient;
wherein:
said metallic material comprises an alloy;
said metallic material is comprised of a martensitic phase with or without the presence of other phases;
said plastic deforming comprises mechanical deformation;
said martensitic phase in said metallic material is oriented in at least one selected orientation in response to said mechanical deforming;
said metallic material, subsequent to said plastic deforming, comprises a second thermal expansion coefficient due to said orientation;
said second thermal expansion coefficient is within a selected range;
said second thermal expansion coefficient quantifies thermal expansion of said metallic material in at least one selected direction; and
said metallic material comprises:
a general formula CoNiX, wherein X is at least one of Al, Ga, Sn, Sb, In;
and combinations thereof.