PSI - Issue 14

4

Sandeep Das et al. / Structural Integrity Procedia 00 (2018) 000–000

Sandeep Das et al. / Procedia Structural Integrity 14 (2019) 119–126

122

Fig. 2. Prepared P/M electrode.

Fig. 3. Setup for electric discharge-based alloying.

Table 2. Experimental results.

Remarks

Deposition rate (mg/min)

Pulse on time ( T on , µs)

Workpiece weight Electrode weight (gm) (gm)

Exp. no Peak current ( I p , A)

Before

After

Before

After

10.117 10.119 59.555 59.511

0.36

229

4

1

Non-uniform

2

4

263

10.177 10.172 61.093 61.034

1.02

Non-uniform

3

4

296

9.930

9.926 60.431 60.440

1.8

Non-uniform

4

4

331

9.826

9.830 60.555 60.477

0.82

uniform

5

4

360

9.555

9.551 59.548 59.690

28.4

uniform

6

4

400

9.260 9.270 60.653 60.623

1.82

uniform

7

4

468

9.400

9.405 59.935 59.903

1.02

uniform

8

4

536

9.333

9.335

59.944

59.886

2.0

uniform

9

4

570

10.982 11.008 65.930 65.956

5.1

Non-uniform

10

4

605

11.212 11.221 60.877 59.893

3.22

Non-uniform

11

4

640

10.824 10.844 59.879 59.874

4.16

Non-uniform

12

4

673

11.259 11.277 60.711 60.654

3.52

Non-uniform

3. Results and discussion The results obtained during the experiments are presented in Table 2. During the experiments it was noted that by using electric discharges, we can successfully deposit material on to the work surface. Figure 4 and 5 show that