A method of manufacturing motor vehicle steering wheels with an external shell created of composite materials, which comprises preparing a pile of sheets of composite supplies, hot molding thereof for getting respective half-shells with a shape corresponding to that of respective halves of the steering wheel being manufactured, mechanical flattening of the front surfaces of the two half-shells, applying the two half-shells to opposite parts of a steering wheel body formed by a metallic core covered by resin, and mutual fixing of the two half-shells along mentioned front surfaces. Some of the particular wheels created for theE.M. high efficiency or limited production cars utilize this type of technology resulting in a light and robust wheel at a reasonable expense.Z. has employed this technologies for many years in their production of racing wheels for Formula One particular and Indy vehicles.Z.’s Formula HLT wheel for the aftermarket is an instance of a wheel developed employing spun-rim technology.
Precision cast compressor wheels in aluminium or turbine impellors in nickel super alloy are intricate, complicated, delicately balanced, completed to close tolerances and have a high degree of metallurgical integri ty. The massive influence force generated by a wheel method using a higher-density metallic media to eliminate stubborn investment can prove too fantastic, causing unacceptable distortion of the vanes.
Among the numerous known processes for manufacturing steering wheels is the procedure comprising providing for formation of two half-shells by hot pressing of one particular or additional material sheets inside molds of appropriate shape, subsequent mechanical flattening working of the junction line of the two half-shells, application of the half-shells on a steering wheel physique formed by a metallic core covered by resin and mutual fixing of the two half-shells along said junction line.
Additional like following step (b), subjecting the entirety of the surface of the intermediate portion of the second profile of the drop properly of the wheel rim to a superficial surface finishing operation, the superficial surface finishing operation leaving the second thickness of the second profile obtained in the course of step (b) substantially unchanged.
This specialized course of action starts with a low stress kind of casting and utilizes a particular machine that spins the initial casting, heats the outer portion of the casting and then makes use of steel rollers pressed against the rim location to pull the rim to its final width and shape. An object of the present invention is to increase this identified course of action to make it specifically appropriate for delivering a steering wheel with half-shells of composite components solidly joined together. The casting of wheels is the approach of getting molten aluminum inside a mold to type a wheel.
