Table 1.
Descriptive information about the experimental study
| No | Machining Conditions | Definitions |
|---|---|---|
| 1 | Workpiece | 6A1-4 V ELI (grade 5) titanium alloy |
| 2 | Workpiece hardness | 290 HB |
| 3 | Workpiece dimensions | Ø60x200 mm |
| 4 | Machining length | 85 mm |
| 5 | CNC Lathe | CNC Lathe LT-20C |
| 6 | A-Cutting speed (m/min) [V] | 55–80 - 105 |
| 7 | B-Feed rate (mm/rev) [f] | 0,15–0,30 - 0,45 |
| 8 | C-Depth of cut (mm) [a] | 1–2 - 3 |
| 9 | Cutting fluid | Cutting fluid is not used |
| 10 | Cutting insert | Sangeo DNMG 150608R-ST PS7220S |
| 11 | Tool holder | SMOXH TDJNR 2525 M15 |
| 12 | Experimental design method | Taguchi L9 (33) |
| 13 | Measured values |
Average surface roughness (Ra) Tool wear Energy consumption |
| 14 | Roughness measuring device | Mitutoyo SJ-210 V.1.008 |
| 15 | Tool wear measurement | Dino-Lite AM2111 Digital Basic USB Microscope |
| 16 | Energy consumption measuring device | Hioki Power Quality Analyzer PW3198 |
| 17 | Hardness tester | Proceq equotip 3 portable hardness tester |
| 18 | Used programs | Minitab, Word, Excell, AutoCAD |
| 19 | Evaluation of the results | Taguchi, regression analysis, pareto plot, ANOVA, multiple optimization |