کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10417455 | 902370 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvement of hole exit accuracy in electrochemical drilling by applying a potential difference between an auxiliary electrode and the anode
ترجمه فارسی عنوان
بهبود دقت خروجی سوراخ در حفاری الکتروشیمیایی با استفاده از اختلاف پتانسیلی بین الکترود کمکی و آند
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کلمات کلیدی
حفاری الکتروشیمیایی، دقت خروجی سوراخ، حذف شدید اختلاف پتانسیل، الکترود کمکی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
چکیده انگلیسی
Electrochemical drilling (ECD) is a promising and low-cost process for yielding multiple holes simultaneously in difficult-to-machine materials. In this process, the hole exit accuracy is very sensitive to the electrode feeding depth. In practice, excessive electrode feeding is necessary to ensure that all holes are drilled through simultaneously when there is an error in thickness of the workpiece plate. This results in stray removal at the hole exit and an etched and pitted surface. In the modification of ECD described here, a potential difference is introduced via an insoluble platinum auxiliary electrode that is attached beneath a dielectric perforated plate and arranged opposite to the hole exits to diminish the damage from the stray current and thereby improve the tolerance of the exit accuracy to excessive electrode feeding. Simulation results indicate that an appropriate value of the potential difference concentrates the current at the tool tip and may reverse the current direction on the workpiece surface. Experiments verify that this approach is effective in obtaining holes with good exit accuracy in the case of excessive electrode feeding. Furthermore, it is confirmed that this method is capable of drilling multiple holes with remarkably enhanced exit accuracy and uniformity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 214, Issue 3, March 2014, Pages 556-564
Journal: Journal of Materials Processing Technology - Volume 214, Issue 3, March 2014, Pages 556-564
نویسندگان
Xiaolong Fang, Ningsong Qu, Yudong Zhang, Zhengyang Xu, Di Zhu,