Forging is a manufacturing process involving the shaping of metal using localized compressive forces. It is done to strengthen the metal pieces. The forging can be conducted at cold, warm or hot temperatures. My proposition is to forge using high pressure at the deep-sea floors.
The electrically operating barges would carry the metal parts to be forged to the open sea where the sea depth and the proximity to the harbor is optimal. Once in location the barge would activate the on board vertical wind turbines. These turbines would then power the cranes that lower the metal parts to the sea floor. Carbon nano tube wires would be used as tether due to its strength and pressure resistance.
The lowering speed would be adjusted depending on the metal part. This slow homogeneous pressurizing process minimizes the internal fatigues seen on traditional forging. Deformations would also be minimized. On locations where hydrothermal vents are present, warm casting can also be done utilizing the hot water source on the ocean floor.
As a conclusion, energy intense metal forging can be done using renewable energy sources. Additionally, complex and large parts can also be forged which would be beneficial for the aviation and space industry. Giant rocket casings and the propellent tanks can be hardened as well as other complex parts.
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