Abstract
Experimental results are detailed when creep feed grinding (CFG) a gamma titanium aluminide intermetallic alloy (,gamma-TiAl) Ti-45Al-8Nb-0.2C with SiC abrasives. When using low porosity wheels at a low wheel speed of 15 m/s and a material removal rate of 62.5 mm/s, G-ratios of similar to 15 were produced with workpiece surfaces free of burn. At higher wheel speeds >= 25 m/s, cracks up to 1 mm deep were evident with extreme workpiece surface burn. By increasing the wheel porosity, specific power, cutting forces, workpiece surface bum and cracking were all reduced however, G-ratio was also reduced to similar to 4 with heavy profile wear. Operation at 15 m/s with increasing feed rate and depth of cut reduced G-ratio still further to
| Original language | English |
|---|---|
| Pages (from-to) | 210-214 |
| Number of pages | 5 |
| Journal | Journal of Materials Processing Technology |
| Volume | 191 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 1 Jan 2007 |
Keywords
- surface integrity
- titanium alloys
- creep feed grinding
- machinability