فهرست نشریات علمی دسترسی آزاد ایران

Electrochemical machining (ECM) is one of the non-conventional manufacturing techniques that can easily machine metals especially hard and brittle metals by a non-contact tool. Although this technique has some advantages such as machining complicated shapes, machining with no residual stress, acceptable surface finishing and low tool wear, due to some reasons it has not been completely commercialized yet. There are several combinations of ECM parameters which are well known to achieve the advantages of this process. In this research, a 4 mm-thick St 37 sheet was drilled by ECM with using the various combination of process parameters. The tool feed rate efficiency (E F ) in these experiments varied from 0.00079 to 0.00374 mm/J. The volume of all holes drilled by different condition were obtained. Then the material removal rate (MRR) and the ECM volume efficiency (E V ) were achieved. The results of this research indicate that in the range of employed parameters, the removed volume is 2.7 to 9.2 mm 3 , the MRR ranged between 0.02 and 0.062 mm 3 /s, the volume efficiency is just 0.00083 to 0.00303 mm 3 /J.