کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10226522 | 1701275 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Drilling of microholes using electrochemical machining
ترجمه فارسی عنوان
حفاری میکرو چاه با استفاده از ماشینکاری الکتروشیمیایی
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
چکیده انگلیسی
Few studies have been reported on the drilling of microholes with a diameter of approximately 10â¯Î¼m or less by electrochemical machining (ECM). The ECM of such holes was therefore attempted using ultrashort voltage pulses. Stainless-steel sheets were drilled using cemented tungsten carbide tool electrodes. As a result, a microhole of 4.5â¯Î¼m entrance diameter and 4â¯Î¼m exit diameter was successfully drilled in a 5-μm-thick sheet with a pulse width of 60 ns using a tool electrode 3â¯Î¼m in diameter. This is the smallest-diameter hole drilled by ECM, to the best of our knowledge. A microhole of 5.5â¯Î¼m entrance diameter and 4.5â¯Î¼m exit diameter was also drilled in an 8-μm-thick sheet. Furthermore, the machining properties were investigated. The effect of the tool electrode shape, pulse width, pulse frequency, high-level and low-level voltages, and electrolyte concentration on the drilling speed and hole diameter was examined. The results suggested that a semicylindrical tool electrode, long pulse width, high pulse frequency, high low-level voltage, and high electrolyte concentration were preferable for high-speed drilling without widening the lateral gap between the tool electrode and hole.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precision Engineering - Volume 54, October 2018, Pages 338-343
Journal: Precision Engineering - Volume 54, October 2018, Pages 338-343
نویسندگان
Kai Egashira, Akio Hayashi, Yu Hirai, Keishi Yamaguchi, Minoru Ota,