United Machining Solutions

Digital twins and sub-micron grinding target EV drivetrain noise

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Digital twins and sub-micron grinding target EV drivetrain noise

Frankfurt – October 31, 2026 -- Fractions of a micrometer in grinding now decide the efficiency and noise level of electric vehicle drivetrains, and machine builders are answering with sub-micron surface finishing and digital twin process control. The topic is in focus at GrindingHub, organized by the VDW (German Machine Tool Builders' Association), which runs May 5-8, 2026 in Stuttgart.

Missing engine noise exposes gearbox flaws

Electric vehicles lack the masking sound of a combustion engine, so excitations from components such as the gearbox become far more audible, according to Prof. Thomas Bergs. He heads the Manufacturing Technology Institute (MTI) at RWTH Aachen and is a director at Fraunhofer IPT.