کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10419478 | 904175 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Drilling of microholes down to 10 μm in diameter using ultrasonic grinding
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
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چکیده انگلیسی
Drilling by grinding is useful for fabricating holes in hard and brittle materials with high dimensional accuracy and low machining cost. However, its application to microholes has been limited to those with a diameter on the submillimeter order. The drilling of microholes less than 0.1 mm in diameter by grinding was therefore attempted on crown glass. Cemented tungsten carbide micropins were fabricated by electrical discharge machining and used as micro-grinding tools. They can be employed because the convex parts of discharge craters formed on the tool surfaces serve as cutting edges of abrasive grains of grinding wheels. In order to reduce grinding force and thus prevent tool breakage, ultrasonic grinding was employed with the workpieces ultrasonically oscillated. As a result, microholes down to 10 μm in diameter were successfully drilled. They are the smallest-diameter holes drilled by grinding, to the best of our knowledge. The effect of helical feeding, in which the tool not only rotates around its axis but also moves in planetary motion, on drilling properties was also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precision Engineering - Volume 38, Issue 3, July 2014, Pages 605-610
Journal: Precision Engineering - Volume 38, Issue 3, July 2014, Pages 605-610
نویسندگان
Kai Egashira, Ryokei Kumagai, Ryohei Okina, Keishi Yamaguchi, Minoru Ota,