锻压技术

60E1A1尖轨跟端模锻成形工艺数值模拟

英文标题：Numerical simulation on die forging process for 60E1A1 pointed rail heel end

作者：王玲张伟梁磊郭石锋

分类号：TG316

出版年,卷(期):页码：2024,49(9):35-42

摘要：

60E1A1尖轨跟端是尖轨与标准导曲线钢轨连接的一端，为便于连接，尖轨跟端需要通过锻造加工成60E1标准钢轨截面形状。通过分析60E1A1尖轨跟端锻件的结构和截面形状特点，并比较截面各部分的锻比，发现各部位的锻比相差较大，成形较为困难。提出了模压复合成形60E1A1尖轨跟端锻件的工艺方法，并利用有限元软件对锻件的模锻成形过程进行数值模拟，全面探究了60E1A1尖轨跟端锻件在初锻、中锻和终锻过程中的金属流动规律。结果表明，该成形工艺可有效调控锻造过程中的金属流动，并能控制锻造过程中的成形力及锻件温度变化，最终成形出所需形状的锻件。

The 60E1A1 pointed rail heel end is the end of pointed rail connected to the standard guide curve steel rail, and in order to facilitate the connection, the pointed rail heel end needs to be processed into the cross-sectional shape of 60E1 standard steel rail by forging. Therefore, by analyzing the structure and cross-sectional shape characteristics of 60E1A1 pointed rail heel end forgings and comparing the forging ratios of various parts for the cross section, it was found that there were significant differences in the forging ratios among different parts, and it was difficult to form. Then, a process method of die forging composite forming for 60E1A1 pointed rail heel end forgings was proposed, and the die forging process of forgings was numerically simulated by finite element software. Furthermore, the metal flow laws of 60E1A1 pointed rail heel end forgings during initial forging, intermediate forging and final forging processes were comprehensively explored. The results show that this forming process can effectively regulate the metal flow during the forging process, and can control the forming force and temperature changes of forgings during the forging process. Ultimately, the forgings with the required shape can be formed.

基金项目：

基金项目:道岔钢轨锻压段自动化制造技术（工业研合-2023-13）

作者简介：王玲（1990-），女，硕士，工程师 E-mail：944464804@qq.com

参考文献：

\[1］王树国.我国铁路道岔现状与发展\[J］.铁道建筑,2015(10):42-46.

Wang S G. Current status and future development trend of railway turnouts in China\[J］. Railway Engineering,2015(10): 42-46.

\[2］朱云鹏. 新型道岔用钢尖轨跟端锻造成形过程研究\[D］.秦皇岛:燕山大学,2022.

Zhu Y P.Research on Forging Process of Heel End of Steel Tip Rail for New Turnout\[D］.Qinhuangdao:Yanshan University,2022.

\[3］乔红梅,姜丽丽,尉小明,等.高速铁路道岔尖轨跟端的整体热处理工艺开发\[J］.金属加工(热加工),2023(6):95-98.

Qiao H M,Jiang L L,Wei X M,et al. Development of overall heat treatment process for high-speed railway switch point rail\[J］. MW Metal Forming,2023(6):95-98.

\[4］ Zhang J,Chen X W,Jia J H,et al. High temperature flow stress behavior and dislocation density evolution of X12 alloy steel \[J］. Transactions of Materials and Heat Treatment,2020,41(4): 165-172.

\[5］汪冠宇,马贵春. 5A90 铝-锂合金流变行为本构模型研究\[J］. 轻金属,2019(8): 55-60.

Wang G Y,Ma G C. Study on the flow behavior and constitutive module of 5A90 Al-Li alloy\[J］. Light Metal,2019(8): 55-60.

\[6］ Liao S L,Zhang L W,Yue C X,et al. Research on thermal deformation behavior and model of flow stress of GCr15 steel\[J］. Journal of Materials Engineering,2008,4: 8-9.

\[7］宋建华. 60AT尖轨跟端模锻成型工艺数值分析及优化\[D］.天津:天津理工大学,2012.

Song J H.Numerical Analysis and Optimization of Molding Forging Process about 60AT Tip Rail\[D］.Tianjin:Tianjin University of Technology,2012.

\[8］钱利锋. 50AT尖轨跟端模锻成形过程数值模拟及工艺分析\[D］.大连:大连交通大学,2009.

Qian L F.Simulation and Technological Analysis of Die Forming Processes about 50AT Ending Part of Touque Rail\[D］.Dalian:Dalian Jiaotong University,2009.

\[9］王斌,王琪伟,宗影影,等.5A06铝合金环形连接框等温模锻坯料设计及工艺验证\[J］.锻压技术,2023,48(1):29-45.

Wang B,Wang Q W,Zong Y Y,et al. Design on isothermal die forging billet for 5A06 aluminum alloy ring connecting frame and process validation\[J］. Forging & Stamping Technology,2023,48(1):29-45.

\[10］贾康凯,张宝红,李国俊,等. 5056铝合金桥形零件挤压成形研究\[J］. 兵器材料科学与工程,2017,40 (2): 72-76.

Jia K K,Zhang B H,Li G J,et al. Research on extrusion forming of 5056 aluminum alloy bridge parts\[J］. Ordnance Material Science and Engineering,2017,40 (2): 72-76.

\[11］郭峰,刘嘉辰,陈慧琴.套管头锻件多向模锻工艺分析\[J］.热加工工艺,2016,45(3):156-159.

Guo F,Liu J C,Chen H Q. Process analysis of casing heads in multi-ram closed-die forging\[J］. Hot Working Technology,2016,45(3):156-159.

\[12］侯丙盛. 60AT型尖轨跟端锻造过程有限元模拟与分析\[D］.太原:太原理工大学,2012.

Hou B S. Finite Element Simulation and Analysis of 60AT Rail Heel End Forging Process\[D］. Taiyuan:Taiyuan University of Technology,2012.

服务与反馈：

【文章下载】【加入收藏】