Table 2 Thermo-physical properties of work and tool materials [4]
From: Performance evaluation of electric discharge machining of titanium alloy-a review
Properties | Tool material | Workpiece material | |||
|---|---|---|---|---|---|
Graphite | Copper | Aluminium | Brass | Ti–6Al–4V | |
Density ( g-cm−3) | 1.77 | 8.90 | 2.75 | 8.73 | 4.43 |
Melting point (°C) | 3300 | 1083 | 660 | 940 | 1604–1660 |
Thermal conductivity ( W-m−1K−1) | 400 | 385 | 205 | 109 | 6.7 |
Electrical conductivity ( S-m−1) | 0.3 × 106 | 59.6 × 106 | 35 × 106 | 16 × 106 | 0.58 × 106 |