Al alloy curved arm box is one of the parts of high voltage circuit breaker.Because of its working in high pressure environment and stringent technical requirements,the casting can not have any defects shrinkage after forming. Al alloy curved arm box is thick in the bottom of the flange in the manufacturing and it will be defected. The numerical simulation by using pre-simulation analysis of the parts can be defect early to judge the situation, so that the process improvement can be completed quickly and ac...
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