工艺参数对楔横轧二次楔轧制超大断面收缩率轴类件的影响  

Effect of process parameters on axial parts with super large area reduction during twice cross wedge rolling

作　　者：娄依志[1] 张康生[1] 杨翠萍[1] 胡正寰[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《北京科技大学学报》2008年第4期432-435,共4页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50575023;No.50435010);高等学校博士学科点专项科研基金资助项目(No.20050008024);国家科技支撑计划资助项目(No.2006BAF04B03)

摘　　要：为考察楔横轧二次楔轧制在超大断面收缩率情况下的成形规律,在H630轧机上进行了不同工艺条件下的超大断面收缩率轧制实验,得到各工艺参数对轧制质量的影响规律,发现在超大断面收缩率情况下二次楔的工艺参数对内部缺陷和拉断加工界限有决定性影响.结果表明,只要参数得当,二次楔轧制可以获得合格的大断面收缩率轴类件.In order to find out the forming rules for axial parts with super large area reduction during twice cross wedge roiling, the extreme roiling experiment under different process conditions was done on an H630 rolling mill. The effect rules of process parameters on the roiling quality were achieved. It is shown that process parameters have determinant effect on the internal defect and tension fracture of the parts with super large area reduction. If the parameters are proper, the qualified axial parts with large area reduction can be produced.

关 键 词：楔横轧 二次楔入 工艺参数 大断面收缩率 

分 类 号：TG335.19[金属学及工艺—金属压力加工]