The application range of ultrasonic metal welding machine is quite wide, generally involving the hardware and home appliance industries, and its appearance has improved the efficiency of production. If we want to choose to buy a welding machine, we still have to understand the product itself. Let me talk about its advantages and disadvantages, which may help you a little bit.
Advantages:
1. Ultrasonic metal welding has low pressure, low energy consumption, and can weld dissimilar metal materials. Based on these characteristics. The rapid forming of metal parts can be achieved by comprehensively using ultrasonic metal welding technology and CNC milling technology. And embed functional devices in the forming process to make smart metal matrix composite materials.
2. Metal ultrasonic welding machine can perform spot welding and continuous welding. Its welding speed is fast. In terms of scope of application. Even if the physical properties of the materials are very different, they can be welded well; it can also be used for welding of metal foils, filaments, tiny devices, and thick and thin, multi-layer metal sheets that cannot be effective by other methods.
3. Ultrasonic metal welding has high strength and good stability. Has high fatigue strength characteristics.
4. The welding process does not require water cooling and gas protection, and the deformation of the welded workpiece is small. After welding, the workpiece does not need to undergo heat treatment such as annealing. The ultrasonic metal welding process itself contains the effect of breaking and cleaning the surface oxide layer of the welded parts. The welding surface is clean and beautiful, and there is no need to clean up after welding like other welding methods.
5. Ultrasonic welding of metal does not require welding rods. The welding zone is not energized. Do not directly heat the welded metal. For welding the same workpiece metal, compared with electrode arc welding and gas welding, the energy consumption of ultrasonic plastic welding machine is much smaller.
6. Because there is no need to add flux. It does not pollute the processed objects, and does not produce any welding slag, sewage, harmful gas and other waste pollution, so it is an energy-saving and environmentally-friendly welding method.
7. Because the ultrasonic generator is a power electronic circuit, it is easy to realize electrical control, and it can cooperate well with a computer for welding control, so as to achieve high-precision welding, and it is easy to realize welding information and automation.
Disadvantages:
1. The application of ultrasonic to the welding of metal materials, although good welding results can be obtained, but the stability, operability, and reliability of the entire system that combines the ultrasonic generator and the acoustic system with the mechanical system still exists problem. Therefore, the design of the acoustic system (transducer, horn, connecting part) and the connection between the acoustic system and the test piece are all very critical issues.
2. Insufficient understanding of the mechanism of metal ultrasonic welding. Whether there is no metal melting in ultrasonic metal welding is just a solid-phase welding method, or a "bonding" process between metals, which needs further research.
3. Ultrasonic metal welding has many factors that affect process parameters, and it is not easy to summarize.
4. Because the power required for welding increases exponentially with the increase of the thickness and hardness of the workpiece, the manufacture of high-power ultrasonic welding machines is difficult and the cost is high. With the further increase of welding power, not only will it face a series of more difficult problems in the design and manufacture of acoustic systems, but also may not be able to achieve the expected process results. Therefore, it is currently limited to thin parts such as welding wires, foils, and sheets.
5. The "openness" of the ultrasonic welding machine is relatively poor, and the projected size of the workpiece cannot exceed the range allowed by the welding system. The joint form is currently limited to lap joints.
6. The surface of the solder joints is prone to high-frequency mechanical vibrations to cause fatigue damage to the edges, which is not good for welding hard and brittle materials.
7. At present, it is relatively difficult to inspect the welding quality of ultrasonic welding. Non-destructive testing equipment has not been popularized. Common methods cannot be used for monitoring. This also causes certain difficulties in mass production.
A product can’t be perfect. It’s normal to have shortcomings. The main thing is to see what it can help us. If it can really improve efficiency and save the corresponding time, then this product can still be used.
