Table 7.
Summary of research conducted on laser beam welding of copper and aluminum.
| Materials | Weld Length | Laser Process | Joint Type | Welding Strategy | Maximum Load | Electrical Contact Resistance | Reference (Year) |
|---|---|---|---|---|---|---|---|
| 0.2 mm Cu [Ni]/0.3 mm Al | 32 mm | Yb:YAG (2f) λ = 515 nm (cw) | Lap joint (Cu on top) | Linear Oscillating |
880 N | 42 μΩ (Test length 17 mm) | (this work) 2023 |
| 0.2 mm Al/1 mm Cu | 45 mm | Single-mode fiber (pulsed mode) | Lap joint (Al on top) | Oscillating | 1209 N | 86 μΩ (Test length 40 mm) | [71] 2023 |
| 0.3 mm Cu/0.4 mm Al | 45 mm | Diode λ = 450 nm (cw) | Lap joint (Cu on top) | Linear | ~670 N | 44 μΩ (Test length 20 mm) | [48] 2022 |
| 0.3 mm Cu [Ni]/0.45 mm Al | 45 mm | Single-mode fiber (cw) | Lap joint (Cu on top) | Linear | 700–800 N | 40~42 μΩ (Test length 20 mm) | [73] 2022 |
| 0.4 mm Al/0.3 mm Cu | 45 mm | Single-mode fiber (pulsed mode) | Lap joint (Al on top) | Linear | ~107 kg (1049 N) | N/A | [74] 2019 |
| 0.3 mm Cu/0.4 mm Al | 45 mm | Single-mode fiber (cw) | Lap joint (Cu or Al on top) | Linear Oscillating |
~130 kgf (1274 N) | N/A | [75] 2019 |
| 0.3 mm Cu [Ni]/0.45 mm Al | 45 mm | Single-mode fiber (cw) | Lap joint (Cu or Al on top) | Oscillating | ~120 kgf (1177 N) | Low electrical resistance | [43] 2019 |
| 0.3 mm Cu/0.3 mm Al | 20 mm | Nd:YAG (cw) | Lap joint (Cu on top) | Linear | 539.52 N | N/A | [67] 2014 |