• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Journal of Xiamen University(natural science) >Surface Modification Process by Electrical Discharge Machining with Ti Powder Green Compact Electrode
【24h】

Surface Modification Process by Electrical Discharge Machining with Ti Powder Green Compact Electrode

机译：钛粉绿色致密电极放电加工的表面改性工艺

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper describes a new method of surface modification by Electrical Discharge Machining (EDM).By using ordinary EDM machine tool and kerosene fluid, a hard ceramic layer can be created on the workpiecesurface with Ti or other compressed powder electrode in a certain condition. This new revolutionary method iscalled Electrical Discharge Coating (EDC). The process of EDC begins with electrode wear during EDM，then akind of hard carbide is created through the chemical reaction between the worn electrode material and the carbonparticle decomposed from kerosene fluid under high temperature. The carbide is piled up on a workpiece quicklyand becomes a hard layer of ceramic about 20μm in several minutes. This paper studies the principle and processof EDC systemically by using Ti powder green compact electrode. Experiments and analyses show that a compactTiC ceramic layer can be created on the surface of metal workpiece. The hardness of ceramic layer is more 3times higher than the base body, and the hardness changes gradiently from surface to base body. This method canbe found wide application in the fields of surface modification, such as the surface repairing and strengthening ofcutting tools and molds.
机译：本文介绍了一种通过放电加工（EDM）进行表面改性的新方法。 通过使用普通的EDM机床和煤油液，可以在工件上形成坚硬的陶瓷层 在一定条件下用钛或其他压缩粉末电极焊接表面。这种新的革命性方法是 称为放电涂层（EDC）。 EDC的过程从电火花加工期间的电极磨损开始，然后 磨损的电极材料与碳之间的化学反应产生了一种硬质碳化物 在高温下从煤油液中分解而来的颗粒。碳化物迅速堆积在工件上 并在几分钟内变成约20μm的陶瓷硬层。本文研究了原理和过程 Ti粉末生坯电极系统地进行EDC的检测。实验和分析表明，紧凑 可以在金属工件的表面上形成TiC陶瓷层。陶瓷层的硬度大于3 硬度比基体高出三倍，并且硬度从表面到基体呈梯度变化。这种方法可以 被发现在表面改性领域有广泛的应用，例如表面修复和强化 切割工具和模具。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号