锻压技术

楔横轧一次楔成形极限断面收缩率实验研究

英文标题：Experimental study on limit-section shrinkage of one wedge in cross wedge rolling

作者：汤先岗张康生贾震胡正寰

关键词：楔横轧极限断面收缩率一次楔入

分类号：TG335

出版年,卷(期):页码：2008,33(4):63-66

摘要：

为了探索工艺参数对楔横轧一次楔成形极限断面收缩率的影响规律,进行了实验研究,发现一次楔成形断面收缩率最大可达97.75%。用软件Origin,SPSS对数据进行分析,揭示了极限断面收缩率随成形角α、展宽长度K的增大而减小,随展宽角β的增大而增大的规律,并发现展宽角β对极限断面收缩率的影响最为显著。研究结果拓宽了楔横轧加工界限,为改进楔横轧模具设计提供一定依据。

In order to study the relation between the limit-section shrinkage of one wedge in cross wedge rolling and the different mechanical parameters,the experiment under different mechanical parameters was made.During the progress of study,the limit-section shrinkage reached 97.75% without necking wrong.Then by using the software Origin,SPSS to analyze the data,the rules were found.When the forming angle α and the spacing of wedges K increase,the limit-section shrinkage decreases,when the spreading angle β increases,the limit-section shrinkage increases too,and the spreading angle β is the most important mechanical parameter to affect the limit-section shrinkage.The study result widens the limit of the cross wedge rolling,and which also gives a lot of gist to improve the design of mould.

基金项目：

高等学校博士学科点专项科研基金项目(20050008024);; 国家自然科学基金资助项目(50575023,50435010);; 国家科技支持计划项目(2006BAF04B03)

参考文献：

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