New project to produce a hybrid metal-composite gear box

Decrease the mass by 25% and reduce the noise thanks to the higher vibration damping – these are the goals of a collaborative project looking at the design and production of a hybrid metal/composite gearbox.

Decrease the mass by 25% and reduce the noise thanks to the higher vibration damping – these are the goals of a collaborative project looking at the design and production of a hybrid metal-composite gearbox.

The project involves Compo Tech, Czech Technical University in Prague, Korea Institute of Machinery and Materials and SAMYANG reduction gear. The project has been running since 2016 with a timetable until October 2019.

The goal of the project is to develop a lightweight high-speed gearbox for application in electromobiles. The gearbox main body will be made of composite materials with metal inserted for bearing surfaces.

CompoTech designed and produced the upper part of the gearbox case and is producing the lower (more complex) part. The test shafts for strength and fatigue were also developed by CompoTech. The gearbox case and shafts consist of many parts, which are adhesively bonded.

Therefore test samples with various types of adhesives and adherents were designed, produced and tested to support the design of the gearbox. CTU in Prague supports the design and development with tests and FE analysis. Korean partners provide the technical specification of the gearbox and will finish, assemble and test the gearboxes.

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www.compotech.com

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