Castable bulk metallic glass strain wave gears: Towards decreasing the cost of high-performance robotics | Nature

by Alex Kirkpatrick

30 November 2016

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The use of bulk metallic glasses (BMGs) as the flexspline in strain wave gears (SWGs), also known as harmonic drives, is presented. SWGs are unique, ultra-precision gearboxes that function through the elastic flexing of a thin-walled cup, called a flexspline. The current research demonstrates that BMGs can be cast at extremely low cost relative to machining and can be implemented into SWGs as an alternative to steel.

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Alex Kirkpatrick is a passionate writer and science communicator...

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