• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Laser Cutting of Multilayered Kevlar Plates
【24h】

Laser Cutting of Multilayered Kevlar Plates

机译：多层凯夫拉板的激光切割

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Laser cutting of Kevlar plates, consisting of multilayered laminates, with different thicknesses are carried out. A mathematical model is developed to predict the kerf width, thermal efficiency, and specific energy requirements during cutting. Optical microscopy and Scanning Electron Microscopy (SEM) are employed to obtain the micrographs of the cutting sections. The kerf width size is measured and compared with the predictions. A factorial analysis is carried out to assess the affecting parameters on the mean kerf width and dimensionless damage sizes. It is found that the kerf width and damage sizes changes sharply when increasing cutting speed from 0.03 to 0.08 m/s. Thermal efficiency of the cutting process increases with increasing thickness and cutting speed while specific energy reduces with increasing thickness. The main effects of cutting parameters are found to be significant on the mean kerf width and dimensionless damage sizes, which is more pronounced for the workpiece bottom surface, where locally distributed char formation and sideways burning are observed.
机译：对具有不同厚度的多层层压板组成的凯夫拉尔板进行激光切割。建立了数学模型，以预测切割过程中的切缝宽度，热效率和特定能量需求。使用光学显微镜和扫描电子显微镜（SEM）获得切割部分的显微照片。测量切口宽度尺寸，并将其与预测值进行比较。进行阶乘分析以评估平均切口宽度和无量纲损坏大小的影响参数。结果发现，当切割速度从0.03 m / s增加到0.08 m / s时，切缝宽度和损伤尺寸会急剧变化。切割过程的热效率随着厚度和切割速度的增加而增加，而比能量则随着厚度的增加而降低。发现切削参数的主要影响对平均切缝宽度和无量纲损伤尺寸具有显着影响，这对于工件底面更为明显，在工件底面上观察到局部分布的焦炭形成和侧向燃烧。

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