| 不同电火花加工条件对Cr12MoV钢表面残余应力的影响 |
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| 引用本文： | 李小松,蔡安辉,陈华.不同电火花加工条件对Cr12MoV钢表面残余应力的影响[J].电加工与模具,2009(1). |
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| 作者姓名： | 李小松 蔡安辉 陈华 |
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| 作者单位： | 湖南理工学院机电系,湖南,岳阳,414000 |
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| 摘 要： | 电火花加工模具所产生的残余应力会使材料的抗疲劳强度下降,造成表面裂纹等缺陷.采用X-350型X射线残余应力分析仪和DJP-2型电解抛光仪逐层去除的方法,在不同的加工条件下,分别测到了冷作模具钢(Cr12MoV)电火花加工表面残余应力的分布,结果表明,表面残余应力的产生和控制取决于放电规准、工作液、电极和工件材料、热处理等因素的选择,为减小残余应力可采用高温回火热处理,但回火温度不得超过电火花加工前的最高回火温度.
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| 关 键 词： | 电火花加工 加工表面 残余应力 |
Effects of Different EDM Conditions on the Surface Residual Stress of Cr12MoV Steel |
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| Li Xiaosong,Cai Anhui,Chen hua.Effects of Different EDM Conditions on the Surface Residual Stress of Cr12MoV Steel[J].Electromachining & Mould,2009(1). |
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| Authors: | Li Xiaosong Cai Anhui Chen hua |
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| Affiliation: | Hunan Institute of Science and Technology;Yueyang 414000;China |
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| Abstract: | Electro-discharge machining(EDM) die,the surface of the residual stress that the anti-fatigue strength of materials dropped,resulting in surface cracks,or even die from failure.The article used X-350 X-ray analyzer residual stress and DJP-2 electro-polishing methods for the removal of layers in different processing conditions,were detected in the mold manufacturing process often used in cold working die steel(Cr12MoV) EDM surface of the residual stress distribution,results showed that the residual stress on... |
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| Keywords: | EDM surface processing residual stress |
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