| 一种降低残余应力的新方法——脉冲磁处理法 |
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| 引用本文： | 鹿安理,唐非,罗湘军.一种降低残余应力的新方法——脉冲磁处理法[J].中国机械工程,1998,9(4):40-42. |
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| 作者姓名： | 鹿安理 唐非 罗湘军 |
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| 作者单位： | 清华大学!北京市，10084，清华大学!北京市，10084，北京航空航天大学!北京市，100083，北京机械工业自动化研究所!北京市，100011，清华大学!北京市，10084 |
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| 基金项目： | 国家自然科学基金!59375225 |
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| 摘 要： | 由试验证明，无论是定拘束单向拉伸试样，还是焊接试样，经适当的高强度脉冲磁处理后，科应力水平明显下降，在大刚度拘束焊接件试样上的结果表明，距焊缝４０ｍｍ附近处的纵向残余应力与横向残余应力下降（１００～１５０）ＭＰａ下降率在４０％以上，纵横向残余应力分布曲线呈一定程度的整体下移，采用若干次强脉冲磁处理的效果更好。
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| 关 键 词： | 残余应力 磁处理 焊接 应力松弛 |
A New Method for Residual Stress Reduction-Pulsed Magnetic Treatment |
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| Lu Anli,Tang Fei, Luo Xiangjun, Mei Junfeng,Fang Fuizhen.A New Method for Residual Stress Reduction-Pulsed Magnetic Treatment[J].China Mechanical Engineering,1998,9(4):40-42. |
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| Authors: | Lu Anli Tang Fei Luo Xiangjun Mei Junfeng Fang Fuizhen |
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| Abstract: | Pulsed magnetic treatment is a en-tirely new non-heating method to reduce residualstresses. The tests show that proper strongpulsed magnetic treatment can lead to stress re-laxation in both rigid restrained tensile specimenand welded specimen. For rigid restrained weldedspecimen,the results show that the longitudinaland transverse residual stresses are reduced -byloo~l5oMPa at the areas for from 4Omm to theweld bead, the rate of reduction are more than4o%. Moreover the longitudinal and the trans-verse residual stress distribution indicates a fea-ture of wholly reduction. In addition,the numberof time of magnetic treatment has influence onthe effects. |
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| Keywords: | residual stresses welding magnetic treatment stress reduction |
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