Elektro erozyon ile delik delmede işleme tamlığının deneysel incelenmesi

Yıl 2018, Cilt: 24 Sayı: 1, 69 - 75, 27.02.2018

Yakup Yıldız

Öz

İşleme tamlığı, elektro
erozyon ile delik delme işlemlerinin en önemli ölçütlerden birisidir ve bu olay
aşırı elektrot aşınmalarından dolayı çok önemlidir. Bu çalışmada iş parçaları,
kör delikler elde edebilmek için elektro erozyon parametrelerine bağlı olarak
işlenmiştir. İşleme tamlığı deneysel olarak işleme derinliği ve deliklerin
şekillerine bağlı analiz edilmiştir. Deneysel sonuçlar varyans analizi ve
regresyon analizi gibi istatistiksel metotlar ile değerlendirilmiştir. Ek
olarak, işleme tamlığını geliştirmek ve en uygun işleme şartlarını belirlemek
için grey ilişki analizi kullanılmıştır. Çalışma akımının belirleyici parametre
olduğu gözlemlenmiştir. Malzemelerin elektro erozyon ile delme işlemlerinde
daha doğru delik şekli elde edebilmek için daha düşük çalışma akımı ve daha
yüksek vurum süresi tavsiye edilmiştir.

Anahtar Kelimeler

İşleme tamlığı, Elektro erozyon ile delik delme, Grey ilişki analizi

Experimental investigation of machining accuracy in electrical discharge drilling

Öz

Machining
accuracy is one of the most important criteria of electro discharge drilling
(EDD) processes and this phenomenon is serious due to excessive electrode
wears. In this study, the workpieces were machined with regard to EDD
parameters to obtain blind holes. The machining accuracy was analyzed
experimentally based on machining depth and shape of the holes. Experimental
results were assessed by statistical methods such as analysis of variance and
regression analysis. In addition, grey relation analysis was used to determine
optimal machining condition and to improve the machining accuracy. It has been
observed that working current is the determinative parameter. The lower working
current and the higher pulse time are suggested to obtain the more accurate
shape of the drilled holes in EDD of materials.

Anahtar Kelimeler

Machining accuracy, Electrical discharge drilling, Grey relation analysis

Kaynakça

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