45钢线性摩擦焊接过程的数值分析

陈亮; 李文亚; 马铁军; 马彩霞

45钢线性摩擦焊接过程的数值分析

西北工业大学陕西省摩擦焊接重点实验室, 西安 710072

基金项目: 西北工业大学创新基金资助项目(2007KJ01005);西北工业大学翱翔之星计划资助项目;教育部留学回国人员科研启动基金资助项目(N9YK0003);教育部新世纪优秀人才计划资助项目(NECT-08-0463)

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- 收稿日期: 2009-08-01

Numerical analysis of linear friction welding process of steel S45C

Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 基于Abaqus/Explicit显式有限元分析软件,建立了线性摩擦焊接同质接头的二维计算模型,研究了线性摩擦焊接45钢接头温度场、应力应变场、轴向缩短量和焊接后期接头的降温过程.结果表明,焊接界面中心温度可在不到1 s内骤升至800℃,之后界面温度缓慢上升至900℃左右,随着焊接过程的进行,焊接接头主要是温度场的均匀化、不断的轴向缩短和飞边的形成,随后接头经历了较快的降温过程.试验验证了计算模型的可靠性.
- 线性摩擦焊 /
- 数值模拟 /
- 詹森-库克模型
Abstract: A two-dimensional finite element model of linear friction welding (LFW) of similar joints was established based on the ABAQUS/Explicit software. The characteristics of LFW joints of steel 45 with Chinese Standard (steel 5C), including temperature, stress, strain fields, axial shortening and the cooling process, were investigated. The results show that the interfacial temperature can increase to 800℃ rapidly within 1s under a certain processing condition, and then increases to about 900℃ slowly. With the progressing of welding, the temperature change of the welding joint gets uniform and becomes short to continuously contract in axial direction, the flash of the joint forms, and then the joint undergoes a rapid cooling process. The experimental results verify the reliability of the present model.
- linear friction welded /
- numerical simulation /
- Johnson-Cook model

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文章访问数: 225
HTML全文浏览量: 12
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45钢线性摩擦焊接过程的数值分析

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出版历程

Numerical analysis of linear friction welding process of steel S45C

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