Study on the NC machining technology of movable-bed molds for the Yellow River
Zhifang Yang · Mechanical & Electrical Engineering Magazine · 2008
The movable-bed molds for the Yellow River are used to study the evolution law of Yellow River basin.All kinds of treatment schemes are based on the research results.So the precision of the molds is very important to the correctness of those schemes.A NC machining process was put forward to making the movable-bed mold for the Yellow River.The process was based on the segmentation method,which the whole movable-bed mold was divided into several parts.Every partition of the mold was made by using NC programming machine.Then all partitions were assembled into the complete mold.A process test was taken.Through the research,it can be concluded that model error includes cutting error and assembling error.In the expriments,the cuttring error is 0.028 mm and the assembling error less than 4 mm which can be controlled by repeated location checking.The results show that it's a efficiency process for making the movable-bed molds for the Yellow River and the error is less than the request value.