Ultrasonic Wire To Terminal Welder
Ultrasonic wire to terminal welder uses a solid phase welding method. The connection between the weldments is achieved through the high-frequency elastic vibration of the acoustic system and the static pressure between the workpieces.
The ultrasonic wire to terminal welder adopts the solid-phase welding method, and the connection between the weldments is realized by the high-frequency elastic vibration of the acoustic system and the static pressure between the workpieces. Under the combined action of static pressure and elastic vibration energy, the weldment converts the elastic vibration energy into friction energy, deformation energy and thermal energy between the workpieces, thereby forming pure metal bonding and atomic diffusion on the surfaces of the two workpieces to realize friction welding. In actual production, the ultrasonic welding joint of the lithium-ion power battery tab is composed of a group of multiple welding points. The quality of the ultrasonic wire to terminal welder is affected by the welding base material, welding surface conditions and other factors.
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) |
Product features:
1. Fast welding speed and high efficiency: Ultrasonic metal welding machines can complete the welding of most metals in just a few seconds during heating welding.
2. Beautiful appearance of the weld seam: Due to the simultaneous pressure and vibration during welding, there is no need for secondary processing on the surface of the metal material after welding. The weld seam has a beautiful appearance and will not leave any defects or marks.
3. Smaller heat affected zone: Ultrasonic metal welding machines only heat the metal parts to be welded as needed, thus minimizing the area of the heat affected zone and avoiding material or structure becoming fragile due to excessive heating.
4. High welding strength: Due to the high-frequency vibration used by the ultrasonic metal welding machine for welding, the metal materials are tightly bonded after welding, with high welding strength and good durability.
FAQ
Q: How about the Ultrasonic Wire To Terminal Welder for electric vehicles
A: Electric vehicles are increasingly favored by consumers because of their green environmental protection and mature battery technology. Among them, lithium-ion battery technology is one of the key technologies for electric vehicles.
In lithium battery technology, three metal welding methods are involved: copper/aluminum foil to pole piece (foil to tab), pole piece to pole piece (tab to tab), pole piece to pole piece (tab to bus). Among them, Soldering the copper/aluminum foil to the pole piece is the most difficult. Since the two ends of the metal welding are made of metals of different thicknesses and materials, one end (the tab) is thicker (for example, 0.2 mm), and the other end is composed of multiple layers of extremely thin metal sheets.
The welding of the foil and the electrode is to connect all the positive and negative foils inside the battery to the corresponding electrode, so as to transmit the internal energy of the battery to the outside. Hundreds of lithium battery cells constitute a typical lithium battery pack. The battery cells are combined in series or in parallel. If one foil and pole piece fails to connect, it will cause the output of the entire battery pack to fail. Therefore, a strong and strong connection between the foil pole and the pole piece is very important.
An ultrasonic metal welding machine was used for the connection of the above-mentioned multilayer foil and the pole piece. Ultrasonic metal welding machines are ideal for welding between dissimilar metal materials such as copper, aluminum, nickel. Two metal parts are compressed by pressure and vibrate with each other at ultrasonic high frequency (usually 20Khz-40Khz). The heat generated by friction can remove oxides and contaminants from the metal surface, and at the same time, the two form a "smooth" metal surface. At this point, under appropriate pressure and heat, a weld is formed between the two.
Since ultrasonic welding of thin metal sheets is a solid process, it is suitable for the combination of different materials to avoid the generation of metallic compounds. Ideal for welding between highly conductive materials such as copper-plated materials. The whole process does not require high power, the welding cycle is very short, only a fraction of a second, and multiple layers of thin materials can be welded in one operation.
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