Ultrasonic Copper Aluminum Welder
Ultrasonic Copper Aluminum welder can reliably weld copper or aluminum cables to metal parts, which are usually smaller than the palm of your hand. Compared with laser welding, ultrasonic welding machine is suitable for welding thinner products, and laser welding will directly penetrate the thin products.
Ultrasonic Copper Aluminum welder can reliably weld copper or aluminum cables to metal parts, which are usually smaller than the palm of your hand. Compared with laser welding, ultrasonic welding machine is suitable for welding thinner products, and laser welding will directly penetrate the thin products. Another important aspect is that the price of laser welding machine is several times more than that of ultrasonic welding machine. Weld the copper wire harness to the ground terminal using ultrasonic waves. More and more industries use ultrasonic welding to weld wire harness to metal parts, or wire harness and wire harness welding.
Parameters
| Product model | L40-P800 | L20-P2000 | L20-P4500 |
| Power supply | Single phase AC220V/AC110V switchable 50Hz | Single phase AC220V/AC110V switchable 50Hz | Single phase AC220V/AC110V switchable 50Hz |
| Air supply | Compressed air 0.5-0.8MPa | Compressed air 0.5-0.8MPa | Compressed air 0.5-0.8MPa |
| Ultrasonic peak power(W) | 500 | 1200 | 2600 |
| Maximum power of the machine(W) | 600 | 1500 | 2800 |
| Ultrasonic frequency(KHz) | 40 | 20 | 20 |
| Maximum ultrasound time(s) | 0.4s | 0.4s | 0.4s |
| Adjustable accuracy of ultrasound time(s) | 0.01s | 0.01s | 0.01s |
| Ultrasonic mold connection thread size | M8*1.25 | 1/2*20UNF | 1/2*20UNF |
| Data output | Can export each welding data from an external USB drive | Can export each welding data from an external USB drive | Can export each welding data from an external USB drive |
| Upper mold size(mm) | 4×4 | 4×4 8×4 | 12×4 8×4 |
| Bottom mold size | 20×20 quick disassemble and replaceable | 20×20 quick disassemble and replaceable | 20×20 quick disassemble and replaceable |
| Maximum number of welding layers | 20 layers of copper foil (negative electrode) 20 layers of aluminum foil (positive electrode) | 30 layers of copper foil (negative electrode) 30 layers of aluminum foil (positive electrode) | 60 layers of copper foil (negative electrode) 60 layers of aluminum foil (positive electrode) |
Features
Fusion welding: Heat the workpiece to be joined to partially melt it to form a molten pool. The molten pool will be joined after cooling and solidification. If necessary, a filler can be added to assist. It is suitable for welding of various metals and alloys without pressure. The welding seam contact surface is liquid and liquid.
Pressure welding: When heated or unheated, apply a certain pressure to the combined weldment to produce plastic deformation or melting, and through the influence of recrystallization and diffusion, the atoms on the two separated surfaces can be connected by forming metal bond welding. The welding seam contact surface is solid.
Fusion welding: Heat the workpiece to be joined to partially melt it to form a molten pool. The molten pool will be joined after cooling and solidification. If necessary, a filler can be added to assist. It is suitable for welding of various metals and alloys without pressure. The welding seam contact surface is liquid and liquid.
FAQ
Q: What factors should be considered in the design of ultrasonic Copper Aluminum welder of aluminum and copper sheets?
A: At present, the thickness of the copper plate of mainstream flat products in the world is generally between 0.12mm and 0.2mm, while the wall thickness of copper pipes is mostly 0.5mm. With the continuous rise of copper prices, enterprises are considering the cost of materials more and more The aluminum plate is used for the ground, the thermal conductivity of copper is 390W/(m·K), and the thermal conductivity of aluminum is 237W/(m·K). According to the basic heat conduction formula Q=Z×A×△T/L, the thickness of the aluminum plate reaches that of the copper plate. 1.65 times (2mm~3mm) can achieve the same heat transfer rate. Copper-aluminum welding is usually spot welded with a 20KHz longitudinal vibration half-wave spot welder, or a 20KHz flexural vibration spot welder. The basic selection is based on the area of the solder joints: if the solder joint area is less than 100mm², choose the 5000W machine; if the solder joint area is greater than 100mm², choose the 7000W machine. In aluminum welding, ultrasonic has a difficulty: the welding head sticks to aluminum. Under the more stringent technical requirements for tear residue indicators such as CATL, the requirements for the stability of the equipment are even higher. The requirements of the copper-bar nickel-plated layer increase the requirements for the wear resistance of the anvil. In the process of accumulating copper-aluminum welding experience, we found that many battery pack designers consider the functional structure design the most when designing copper-aluminum bars. They did not consider that when ultrasonic welding is used, the workpiece is driven by the vibration source of the welding head. The problem of workpiece cracks and welding difficulty caused by the forced vibration state. In addition, the thickening of aluminum parts is another difficulty that the ultrasonic industry needs to adapt to.
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