التفاصيل البيبلوغرافية
| العنوان: |
Same-spot micro-ECM based on constant-accelerated movement of the electrode. |
| المؤلفون: |
Chen, Shun-Tong, Chiu, Wei-Jen, Chiu, Chi-Hsien |
| المصدر: |
Materials & Manufacturing Processes; 2024, Vol. 39 Issue 9, p1236-1246, 11p |
| مصطلحات موضوعية: |
ELECTRIC displacement, ELECTRIC flux, ELECTROPHORETIC deposition, ELECTRODES, CORROSION in alloys |
| مستخلص: |
An injector nozzle needs a precision upside-down tapered-microhole, and the nozzle material is often a high temperature corrosion resistant alloy that is very difficult to machine. In this study, a same-spot micro-ECM technique with the electrode in "constant-accelerated movement" was proposed. Insulated by electrophoretic deposition, an ultra-fine electrode was inserted deep into the hole and subject gradually to withdrawal from the hole at constant rpm and acceleration. The electric flux intensity acting on the hole-wall gradually decreased and so did the material dissolution rate on the hole-wall, thus creating an upside-down tapered hole with the desired taper-rate. The experiments' results showed that upside-down tapered holes with taper-rates of T(a=1) = 0.094 (Ra 0.593 μm) and T(a = 2) = 0.02 (Ra 0.435 μm) were produced when the electrode was subject to constant-acceleration withdrawal at 1.0 and 2.0 μm/s2, respectively, and respective spray angles of 31° and 23° were created. The proposed technique is commercially promising in industry. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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