Abstract
In order to reduce the final forging load of spur gear precision forging, several alternative die designs that use a ring billet are put forward. The influence of different designs on metal flow and load requirements is examined through finite element simulation and experiments. A new precision forging technology is then developed, which includes a two-step forging process to control metal flow in the die cavity. Well-shaped products can be forged successfully by using a lower forging load than that of conventional forging.
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