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Effect of Machining Parameters on Surface Roughness and Dimensional Accuracy of Micro Drilling for Copper


Effect of Machining Parameters on Surface Roughness and Dimensional Accuracy of Micro Drilling for Copper



von: Dr. Chandan Deep Singh, Rajdeep Singh, Dr. Kanwaljeet Singh, Swarnjeet Singh

28,99 €

Verlag: Bookrix
Format: EPUB
Veröffentl.: 17.01.2018
ISBN/EAN: 9783743850378
Sprache: englisch
Anzahl Seiten: 42

Dieses eBook enthält ein Wasserzeichen.

Beschreibungen

Drilling is one of the basic machining process of making holes and that is is essential formanufacturing industry. Therefore optimization of the parameters that control the process ofmicro drilling is unavoidable in order to have the best results. In this study the parametricoptimization of micro drilling has been studied by considering a number of parameters such asspindle speed, feed rate and drilling tool size on material removal rate (MRR), surfaceroughness, dimensional accuracy. In this work, a study has been done on optimum drillingparameter for carbide drilling tool in micro-drilling processes in order to find the best drillingparameter for copper as a work piece material. Micro drilling experiment with 2.3mm to 2.6 mmdrill sizes were performed by changing the spindle speed and feed at three different levels. Comparative analysis has been done between surface roughness, MRR and dimensional accuracyof drilled holes by experimentation. From the result, the surface roughness are mostly influencedby spindle speed and feed rate. As the spindle speed increases, the surface roughness willdecrease. However the surface roughness increases with increase in feed rate. The value ofMRR decrease when the tool diameter, spindle speed and feed rate decreases. As drilling tooldiameter, feed rate and spindle speed increase the dimensional accuracy of drilled hole willdecrease. The increment of spindle speed and feed rate value will affect the tool wear.

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