• 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 >Effect of Trimming Process Parameters on Sheared Edge Geometry and Stretch Limit: An Experimental Investigation
【24h】

Effect of Trimming Process Parameters on Sheared Edge Geometry and Stretch Limit: An Experimental Investigation

机译：修剪过程参数对剪切边缘几何和拉伸极限的影响：实验研究

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

The stretchability and flangeability of sheared sheet metal in stamping are directly influenced by the trimmed edge quality. In this work, the effect of the trimming parameters on the edge quality was investigated using experimental and statistical approaches. The material of study was a 6xxx-series aluminum sheet. A digital 3D optical microscope was used to assess the quality of the sheared edge geometry by measuring several distinct trimmed edge geometrical features, namely rollover, burnish, fracture, and burr. The evolution of the sheared edge geometry was studied by changing four trimming parameters, namely clearance, offal support, lower tool sharpness, and upper tool sharpness. The sheared edge's ability to stretch was assessed by measuring both the total elongation and the local strain of trimmed half dog-bone specimens tested under uniaxial tensile loading conditions. A generalized linear model regression was used to investigate the relationship between the edge stretch, edge geometry, and trimming process parameters. The burr size was found to be the most significant factor for predicting elongation, while clearance between the upper tool and the lower tool was found to be the most significant controllable regression variable. Furthermore, the use of high support was reported to decrease the sensitivity of the trimmed edge quality to the upper and lower tool sharpness.
机译：冲压剪切金属剪切金属的可拉伸性和凸缘性直接受到修剪边缘质量的影响。在这项工作中，使用实验和统计方法研究了修剪参数对边缘质量的影响。研究材料是6xxx系列铝板。数字3D光学显微镜用于通过测量若干不同的修剪边缘几何特征，即翻转，烧伤，骨折和毛刺来评估剪切边缘几何形状的质量。通过改变四个修整参数，即间隙，内脏支撑，更低的刀具清晰度和上工具清晰度来研究剪切边缘几何形状的演变。通过在单轴拉伸负载条件下测量在单轴拉伸负载条件下测试的整个半狗骨标本的总伸长伸长率和局部菌株来评估剪切边缘的伸展能力。广义线性模型回归用于研究边缘拉伸，边缘几何形状和修整过程参数之间的关系。发现毛刺尺寸是预测伸长率最重要的因素，而上工具与下工具之间的间隙被发现是最重要的可控回归变量。此外，据报道使用高载体以降低修剪边缘质量与上部和下部工具清晰度的灵敏度。

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