Application research and practice of water-cooling delay system for automobile stamping die
The application and practice of water-cooing delay system in automobile stamping die were described,it solved the problems such as difficult forming and incomplete plastic deforma-tion of body safety structure parts in traditional stamping process.By controlling with compressed air and solenoid valve,the delayed nitrogen gas spring with a water-cooling system was driven to implement delayed drawing forming with blank holder.The forming effect of the parts was good and the promotion value was high.
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