...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Manufacturing Processes >Experimental and numerical study of temperature field and molten pool dimensions in dissimilar thickness laser welding of Ti6A14V alloy
【24h】

Experimental and numerical study of temperature field and molten pool dimensions in dissimilar thickness laser welding of Ti6A14V alloy

机译：Ti6A14V合金不同厚度激光焊接温度场和熔池尺寸的实验和数值研究

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 study is an important consideration in the present century with advances in laser technology. Titanium alloys are of great importance to the defense industry, aerospace and other industries due to its properties, including strength to weight. In this research, experimental and numerical study are investigated for laser welding on sheets of Ti6Al4V alloy with different thicknesses. Analysis of the temperature distribution around the molten pool and dimensions of the depth and width of the molten pool are performed by changing the parameters of laser such as focal length, speed of laser welding and power. The results show that the heat affected zone (HAZ) and molten pool is diverted to the thinner sheet. Also, by decreasing the focal length, the temperature of the workpiece and the dimensions of depth and width of the molten pool are increased. In addition, with enhancing the laser speed, the laser beam contact time with the workpiece surface reduces and the temperature decreases, resulting in a decrease in the dimensions of the depth and width of the molten pool. Eventually, as the power increases, the dimension of the melt pool increase and at both 180 W and 240 W powers, the thinner sheet experiences higher temperatures compared to the thicker sheet. In this study, the results of numerical simulation are matched with the experimental results and can be applied to obtain the temperature and geometry of the melt pool in other cases to reduce the cost and time.
机译：随着激光技术的发展，激光研究是本世纪的重要考虑。钛合金由于其特性（包括强度对重量）而对国防工业，航空航天和其他行业至关重要。在这项研究中，对在不同厚度的Ti6Al4V合金薄板上进行激光焊接的实验和数值研究进行了研究。通过改变激光参数（例如焦距，激光焊接速度和功率）来分析熔池周围的温度分布以及熔池深度和宽度的尺寸。结果表明，热影响区（HAZ）和熔池转向了较薄的薄板。另外，通过减小焦距，可以提高工件的温度以及熔池的深度和宽度的尺寸。另外，随着激光速度的提高，激光束与工件表面的接触时间减少并且温度降低，导致熔池的深度和宽度的尺寸减小。最终，随着功率的增加，熔池的尺寸也增加，并且在180 W和240 W的功率下，较薄的薄板都比厚的薄板经受更高的温度。在这项研究中，数值模拟的结果与实验结果相匹配，在其他情况下可以将其用于获得熔池的温度和几何形状，从而降低成本和时间。

著录项

  • 来源
    《Journal of Manufacturing Processes》 |2020年第1期|438-446|共9页
  • 作者

  • 作者单位

    Tianjin Univ State Key Lab Hydraul Engn Simulat & Safety Tianjin 300350 Peoples R China|Univ Wollongong Sch Mech Mat Mechatron & Biomed Engn Wollongong NSW 2522 Australia;

    Islamic Azad Univ Dept Mech Engn Najafabad Branch Najafabad Iran;

    Ton Duc Thang Univ Adv Inst Mat Sci Lab Magnetism & Magnet Mat Ho Chi Minh City Vietnam|Ton Duc Thang Univ Fac Appl Sci Ho Chi Minh City Vietnam;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Laser welding; Molten pool; Ti6Al4V alloy; Heat transfer; Different thicknesses;

    机译：激光焊接;熔池Ti6Al4V合金;传播热量;不同的厚度;

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