高铁空心车轴三辊斜轧成形仿真及分析
PDF下载 (9704)许 畅 1,2,束学道 1,2*,朱 颖 1,2.高铁空心车轴三辊斜轧成形仿真及分析[J].宁波大学学报(理工版),2018,31(4):16-19.DOI:
XU Chang 1,2,SHU Xue-dao 1,2*,ZHU Ying 1,2.Simulation and analysis of three-roll skew rolling forming of the railway hollow shaft[J].Journal of Ningbo University(Natural Science & Engineering Edition),2018,31(4):16-19.DOI:
| Title: | Simulation and analysis of three-roll skew rolling forming of the railway hollow shaft |
| 作者: | 许 畅 1, 2, 束学道 1, 2*, 朱 颖 1, 2 |
| Author(s): | XU Chang 1, 2, SHU Xue-dao 1, 2*, ZHU Ying 1, 2 |
| 关键词: | 三辊斜轧; 高铁空心车轴; 仿真; 可行性 |
| Keywords: | three-roll skew rolling; railway hollow shaft; simulation; feasibility |
| 分类号: | TG335.11 |
| 文献标识码: | A |
| 摘要: | 针对目前高铁空心车轴成形工艺投资大、成本高、材料利用率低等问题, 采用三辊斜轧成形高铁空心车轴工艺, 利用Simufact有限元软件, 对1:5的高铁空心车轴进行三辊斜轧成形仿真, 分析其成形过程中金属流动规律, 应变场、温度场及轧制力的变化规律, 阐明其成形机理. 在轧制同等尺寸的空心车轴时斜轧的力能参数明显小于楔横轧的. 研究结果表明三辊斜轧成形高铁空心车轴工艺可行, 为短流程低成本实现高铁空心车轴精确成形及其国产化奠定理论基础. |
| Abstract: | Aiming at the existing problems in high-speed railway hollow shaft forming process, e.g. large investment, high cost, and low utilization rate of materials, the paper puts forward a new process of forming high-speed rail hollow axle by three-roll skew rolling. The three-roll skew rolling forming of 1:5 high-speed rail hollow shaft is simulated by Simufact 13.3 finite element software. The law of metal flow, the variation regulation of strain field, temperature field and rolling force are analyzed, and its forming mechanism is clarified. The energy parameter of three-roll skew rolling is obviously smaller than that of cross wedge rolling when rolling the hollow shaft of the same size. The results show that the forming process of high-speed rail hollow axle by three roll skew rolling is feasible. This study lays a theoretical foundation for the realization of accurate forming and localization of high-speed rail hollow axle with short process flow and low cost. |
| 参考文献 /References: | [1] 俞澎辉. 高速列车空心车轴楔横轧多楔轧制成形关键技术研究[D]. 宁波: 宁波大学, 2013. [2] 李传民, 束学道, 胡正寰. 铁道车辆用车轴成形方法现状与研究[J]. 冶金设备, 2006(6):5-8. [3] 秦敏, 李继光, 房娃, 等. 空心车轴径向锻造工艺的模拟研究[J]. 太原科技大学学报, 2008(5):373-376. [4] Pater Z. Theoretical and experimental analysis of cross wedge rolling[J]. International Journal of Machine Tools and Manufacture, 2000(40):49-63. [5] Pater Z, Tomczak J, Bulzak T. Numerical analysis of the skew rolling process for main shafts[J]. Metallurgy, 2015, 54(4):627-630. [6] 贾尚武, 王召林, 刘松, 等. 三辊斜轧空心减径的辊形设计及实验验证[J]. 精密成形工程, 2013(5):18-23; 28. [7] 张小平, 秦建平. 轧制理论[M]. 北京: 冶金工业出版社, 2006. |
| 备注/Memo: | 收稿日期: 2017－09－27. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/基金项目: 国家自然科学基金（51475247）; 浙江省科技计划（2016C31018）; 浙江省自然科学基金（LZ17E050001）.第一作者: 许畅（1994－）, 男, 安徽黄山人, 在读硕士研究生, 主要研究方向: 三辊斜轧成形技术. E-mail: 714237792@qq.com*通信作者: 束学道（1968－）, 男, 安徽舒城人, 教授, 主要研究方向: 塑性加工工艺与设备. E-mail: shuxuedao@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
