کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
757088 1462500 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of tube-electrode inner diameter on electrochemical discharge machining of nickel-based superalloy
ترجمه فارسی عنوان
اثر قطر داخلی لوله الکترود بر ماشینکاری تخلیه الکتروشیمیایی سوپرآلیاژ بر پایه نیکل
کلمات کلیدی
ماشینکاری برقی الکتریکی؛ ماشینکاری الکتروشیمیایی؛ سوراخ خنک کننده فیلم ؛ قطر داخلی؛ ابررسانای بر پایه نیکل؛ الکترود لوله
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی

Nickel-based superalloys are widely employed in modern aircraft engines because of their excellent material characteristics, particularly in the fabrication of film cooling holes. However, the high machining requirement of a large number of film cooling holes can be extremely challenging. The hybrid machining technique of tube electrode high-speed electrochemical discharge drilling (TEHECDD) has been considered as a promising method for the production of film cooling holes. Compared with any single machining process, this hybrid technique requires the removal of more complex machining by-products, including debris produced in the electrical discharge machining process and hydroxide and bubbles generated in the electrochemical machining process. These by-products significantly affect the machining efficiency and surface quality of the machined products. In this study, tube electrodes in different inner diameters are designed and fabricated, and the effects of inner diameter on the machining efficiency and surface quality of TEHECDD are investigated. The results show that larger inner diameters could effectively improve the flushing condition and facilitate the removal of machining by-products. Therefore, higher material removal efficiency, surface quality, and electrode wear rate could be achieved by increasing the inner diameter of the tube electrode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Aeronautics - Volume 29, Issue 4, August 2016, Pages 1103–1110
نویسندگان
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