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清华大学学报(自然科学版)  2017, Vol. 57 Issue (6): 591-596,603    DOI: 10.16511/j.cnki.qhdxxb.2017.26.024
  机械工程 本期目录 | 过刊浏览 | 高级检索 |
铝合金叠层板钻削层间毛刺高度预测模型
吴丹, 黄诗剑, 高雨浩, 董云飞, 马信国
清华大学 机械工程系, 北京 100084
Predictive model for the interlayer burr height during drilling of stacked aluminum plates
WU Dan, HUANG Shijian, GAO Yuhao, DONG Yunfei, MA Xinguo
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
全文: PDF(2616 KB)  
输出: BibTeX | EndNote (RIS)      
摘要 叠层构件制孔容易生成层间毛刺,严重影响加工质量和效率。为了探究层间毛刺生成过程,预测毛刺高度,提出有效控制层间毛刺的工艺方法,该文首先通过实验建立钻削轴向力经验公式,然后采用有限元方法计算单层板在理论钻削力下的变形量,进而预测层间毛刺生成初始位置,最后运用能量法建立叠层钻削层间毛刺高度理论模型。应用硬质合金麻花钻在铝合金叠层试件上开展钻削实验,结果表明:理论模型能够有效地预测层间毛刺高度,揭示进给量和层间间隙对层间毛刺的影响规律,有助于优化叠层钻削工艺参数。
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吴丹
黄诗剑
高雨浩
董云飞
马信国
关键词 叠层构件钻削层间毛刺层间间隙    
Abstract:The drilling of stacked components tends to form interlayer burrs, which reduce machining quality and the production efficiency. This study analyzes the formation and height of interlayer burrs and presents an effective processing method to control interlayer burrs. An empirical formula was developed for the thrust force during drilling for an finite element analysis (FEA) model of the drilling process to product the single plate deformations and to find the initial burr formation position. Then, the energy method is used in a mechanical model to product the interlayer burr height. The predictions agree well with drilling experiments with stacked aluminum plates and a carbide drill. The results show the effects of the feed rate and the interlayer gap on the interlayer burr formation to optimize the processing parameters of stacked components.
Key wordsstacked component    drilling    interlayer burr    interlayer gap
收稿日期: 2016-08-09      出版日期: 2017-06-15
ZTFLH:  TH16  
引用本文:   
吴丹, 黄诗剑, 高雨浩, 董云飞, 马信国. 铝合金叠层板钻削层间毛刺高度预测模型[J]. 清华大学学报(自然科学版), 2017, 57(6): 591-596,603.
WU Dan, HUANG Shijian, GAO Yuhao, DONG Yunfei, MA Xinguo. Predictive model for the interlayer burr height during drilling of stacked aluminum plates. Journal of Tsinghua University(Science and Technology), 2017, 57(6): 591-596,603.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.26.024  或          http://jst.tsinghuajournals.com/CN/Y2017/V57/I6/591
  图1 制孔实验平台
  表1 钻削力标定实验使用设备及条件
  图2 钻削轴向力随时间变化曲线
  图3 钻削轴向力与进给量关系
  图4 有限元仿真模型设置与仿真结果(单位:mm)
  表2 单层板变形量仿真结果
  图5 层间毛刺生成过程
  图6 层间毛刺形态
  表3 进给量和压紧力与层间毛刺高度关系验证实验工艺参数
  表3 进给量和压紧力与层间毛刺高度关系验证实验工艺参数
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