Table 3 Experimental results of the effect of laser power, exposure time, and FPP on the diameter, depth, and HAZ of drilled holes, as presented by Design–Expert software
No. | Factor 1 | Factor 2 | Factor 3 | Response 1 | Response 2 | Response3 |
|---|---|---|---|---|---|---|
Run | A: Power (W) | B: Exposure time (s) | B: FPP (mm) | Depth of hole (mm) | Diameter of hole (μm) | HAZ (μm) |
1 | 2 | 0.15 | −4 | 0.4 | 500 | 155 |
2 | 2 | 0.2 | −2 | 0.7 | 350 | 102 |
3 | 2 | 0.1 | −2 | 0.4 | 320 | 80 |
4 | 2 | 0.15 | 0 | 0.8 | 320 | 80 |
5 | 3 | 0.1 | −4 | 0.4 | 565 | 118 |
6 | 3 | 0.2 | −4 | 0.82 | 618 | 206 |
7 | 3 | 0.15 | −2 | 0.65 | 340 | 100 |
8 | 3 | 0.15 | −2 | 0.651 | 341 | 100.2 |
9 | 3 | 0.15 | −2 | 0.65 | 341 | 100 |
10 | 3 | 0.15 | −2 | 0.65 | 340.7 | 100.05 |
11 | 3 | 0.15 | −2 | 0.6502 | 340 | 100 |
12 | 3 | 0.1 | 0 | 0.8 | 331 | 80 |
13 | 3 | 0.2 | 0 | 1 | 400 | 101 |
14 | 4 | 0.15 | −4 | 0.8 | 616 | 170 |
15 | 4 | 0.1 | −2 | 1 | 352 | 101 |
16 | 4 | 0.2 | −2 | 1 | 500 | 202 |
17 | 4 | 0.15 | 0 | 1 | 351 | 102 |