Tesla's 'Alien Dreadnought' factory takes a step forward with structural cable patent
From the patent:
Structural element 104 may be a strip or a bar of metal, e.g., iron, steel, stainless steel, aluminum, copper, tin, or nickel at a thickness so as to provide structural support but allow for manipulation (for example cold bending) into different geometries.
For example, structural element 104 may be a 1.5 mm thick bar of copper. The structural element 104 may be cold rolled prior to installation by the robotic arm 106 or cold rolled by the robotic arm 106 itself.
Besides pure metals, the structural element 104 may be formed from other materials including, but not limited to, alloys that exhibit suitable ductility in providing the adequate amounts of flexibility and rigidity.
Structural element 104 may also be non-metallic. For example, the structural element may be made of a monomer, polymer, or hybrid polymer-metal composite. Exemplary polymers include silicone polyethylene complex polymers, which can be malleable as well as retain form, homopolymer high density polyethylene (HDPE), which can achieve good plastic deformation retention, or another polymer.
To form specific bends and geometries, localized heat may be used to thermoplastically deform the polymer. An exemplary polymer-metal composite is copper and iron nanoparticles embedded in polyvinylchloride. Other structural elements may also be used as long as they may be formed or deformed into the desired structure.
I suspect this will be used initially in the Model Y.