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Abstract A precision sphere grinding system was introduced. On the basis of mechanism of sphere grinding system and grinder structure, the cause of sphere form error was analyzed. BP neural network was used to fit the nonlinear relationship between feed rate, grinding section and spindle current. And the current was kept stable by adjusting feed rate previously at different grinding section, therefore, constant power grinding was obtained.
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Received: 27 October 2010
Published: 30 November 2011
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