The recursion formula to determine the strike force of screw press with a fly wheel to energy accumulate was derived from the relationship between the force and energy according to the energy conservation law. It was practical by means of the method of upsetting ring calibrating sample. Using rotate speed sensor to collect the fly wheel angular velocity,the forming forces at different time were got by point-by-point computation. The maximum forming force is the expected strike force. The results show that t...
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