göv, kürşad gaziantep university - faculty of aeronautics and astronautics - aircraft and aerospace engineering department, Turkey

Experimental Investigation of the Effects of Electrodes on EDM Hole Drilling Process

15929

In this experimental comparative study, holes were machined to the DIN 1.2379 die steel by using Electrical Discharge Hole Drilling (EDHD) method. The effect of the different electrode materials, channel type and machining current on EDHD performance was investigated. In the experiment, single and multi-channel brass and copper electrodes were used. The performance parameters were defined as machining speed (MS), electrode wear (EW), surface roughness (Ra) and white layer thickness (WLT). The experimental results reveal that the single-channel brass electrode has comparatively better MS and lower EW then the multi-channel brass and copper electrodes. Also, the surface quality and WLT of the single-channel brass electrode has the better values then the others.

377

EDHD , Machining Speed , Electrode Wear , Surface Roughness , White Layer Thickness

Journal Of Polytechnic

382