Micro-EDM of micro-stepped hole based on the wear of micro-bit
Micro-EDM of micro-stepped hole based on the wear of micro-bit
复制标题
基于微型钻头磨损的微阶梯孔微细电火花加工
DOI：
10.1080/10426914.2021.2016826
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发表时间：
2021-12
影响因子：
4.8
通讯作者：
Shi-yun Wu
中科院分区：
文献类型：
--
作者：
Bin Xu;Tao Feng;Xiao-yu Wu;Feng Luo;Jian-guo Lei;Jun Yang;Shi-yun Wu
采用不同尺寸的微型钻头分步钻削是获得微小台阶孔的常用技术。然而，在微小钻头的装夹过程中，可能会出现重复失准，从而影响微小阶梯孔的加工精度。此外，对于模具钢、硬质合金等难加工材料，通过钻孔很难获得理想的加工结果。在此背景下，基于微细钻头的电火花加工磨损，在模具钢上加工出微小台阶孔。首先，利用高速旋转的微细钻头对模具钢进行微细电火花加工，得到基本微孔。在微细电火花加工过程中，微钻头被磨损，从而减少其长度。其次，磨损后的微型钻头沿规定的轴线沿着振动，对模具钢工件进行微细电火花加工，从而在基础微孔上加工出微小台阶孔。该方法避免了其他方法中微钻头的装夹误差，提高了微台阶孔的加工精度。通过对工艺参数的方差分析和表面响应模型的建立，选择了合适的工艺参数。最后，在适当的工艺参数作用下，利用该方法获得了微小台阶孔。
Applying different micro-bits with different sizes to carry out step-by-step drilling is a common technique to obtain micro-stepped holes. However, the possibility of repeated misalignments in the clamping of micro-bits will affect the machining accuracy of the micro-stepped holes. Furthermore, for difficult processing materials such as die steel and cemented carbide, it is difficult to obtain ideal machining results through drilling. Under this background, micro-stepped hole was processed on die steel based on the electrical discharge machining (EDM) wear of micro-bits. Firstly, a high-speed rotating micro-bit was used to perform micro-EDM on die steel to obtain a basic micro-hole. During the micro-EDM process, the micro-bit was worn and thus its length was reduced. Secondly, the worn micro-bit shook along a defined axis to carry out micro-EDM on the die steel workpiece, thus machining micro-stepped hole on the basic micro-hole. This method avoided the clamping error of micro-bit found in other techniques and improved machining accuracy of micro-stepped hole. Through the analysis of variance (ANOVA) of processing parameters and the establishment of surface response model, the appropriate processing parameters were selected. Finally, under the action of appropriate processing parameters, micro-stepped hole was obtained by the proposed method.
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DOI：
10.4028/www.scientific.net/amm.109.187
发表时间：
2011-10
期刊：
Applied Mechanics and Materials
影响因子：
--
作者：
J. L. Liu;K. Wang;X. Chen
通讯作者：
J. L. Liu;K. Wang;X. Chen
影响因子：
4.8
作者：
M. Sivaraj;N. Selvakumar
通讯作者：
M. Sivaraj;N. Selvakumar
影响因子：
4.8
作者：
P. M. Kumar;K. Sivakumar;N. Jayakumar
通讯作者：
P. M. Kumar;K. Sivakumar;N. Jayakumar
DOI：
10.4028/www.scientific.net/amr.706-708.234
发表时间：
2013-06
期刊：
Advanced Materials Research
影响因子：
--
作者：
Xu Cao;K. Wang;Yuh-Puu Han;Chong Lin
通讯作者：
Xu Cao;K. Wang;Yuh-Puu Han;Chong Lin
DOI：
10.1007/s00170-020-05941-3
发表时间：
2020-08
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
X. Mao;Xiangzhi Wang;Chaojiang Li;J. Mo;S. Ding
通讯作者：
X. Mao;Xiangzhi Wang;Chaojiang Li;J. Mo;S. Ding