As the functions of smart phones continue to enrich, the structure of mobile phones is becoming more and more complex. Small areas are compressed countless times by engineers in exchange for the best design effect. Faced with such complex processing, a little more, a little less, and slight unevenness will affect the operation of the entire mobile phone. Therefore, in order to ensure the perfect inlay and integration of each component. It is necessary to use the current high-precision welding processing method for processing.
Ⅰ.Overview of laser welding technology
The laser welding machine uses high-energy laser pulses to locally heat the material in a small area, diffuse it into the material through heat conduction. And melt the material to form a specific molten pool to achieve the purpose of welding. Laser welding has the advantages of small heat-affected zone, small deformation, fast welding speed, and smooth and beautiful welds. It is very suitable for welding various parts of mobile phones.
Ⅱ.Application of laser welding of mobile phone parts
1. Laser welding of mobile phone middle frame and outer frame and shrapnel
The mobile phone shrapnel is like a hub connecting 4G and 5G, connecting the aluminum alloy middle frame with other material structural parts of the mobile phone middle plate. The metal shrapnel is welded to the conductive position by laser welding, which can play an anti-oxidation and anti-corrosion role. Whether it is gold-plated aluminum, copper-plated steel or gold-plated steel, the shrapnel can be firmly connected to the mobile phone through laser welding.
2. Laser welding of USB data cables and power adapters
USB data cables and power adapters play an important role in our lives. Many manufacturers of electronic data cables use laser welding machine for production. Because this method not only improves welding efficiency but also ensures welding quality. Laser welding can achieve precision welding without damaging the wire. Thereby ensuring the long-term and reliable use of data cables and power adapters.
3. Laser welding of metal parts inside mobile phones
The inside of the mobile phone contains many metal parts, which need to be connected together by welding. Common welding applications include laser welding of resistors and capacitors, stainless steel nuts for mobile phones, camera modules and RF antennas. The laser welding machine does not require tool contact during the welding process. It avoids contact damage between the tool and the device surface and improves the processing accuracy. This new type of microelectronic packaging and interconnection technology can be perfectly applied to the processing process of various metal parts inside the mobile phone.
4. Laser welding of mobile phone chips and PCB boards
Mobile phone chips refer to chips used for mobile phone communication functions. While PCB boards are the support body of electronic components and the provider of electrical connections for electronic components. As mobile phones develop towards thinness, traditional soldering methods are no longer suitable for the welding needs of internal parts of mobile phones. Laser welding, with its high efficiency, high quality and long service life, has gradually penetrated into the mobile phone manufacturing industry and can realize automated production. Many manufacturers are already using this technology.
Ⅲ.Advantages of laser welding
The application of laser welding in mobile phone manufacturing is not limited to the above aspects. Its high precision, high efficiency and low deformation make it an important position in complex precision processing. In addition, laser welding also has the following significant advantages:
1. High precision and high reliability:
The laser welding machine can accurately control the heat input. So that the heat effect on the welding area is minimal, thereby reducing the thermal deformation of parts.
2. Non-contact processing:
The laser welding machine avoids the physical damage that may caused by the contact between the tool and the workpiece in traditional welding, and improves the processing quality and yield rate.
3. Wide range of applications:
The laser welding machine can weld a variety of materials, including highly reflective materials such as aluminum and copper. They are more difficult in traditional welding.
4. High degree of automation:
The laser welding machine is easy to realize automatic control, which improves production efficiency and reduces labor costs.
Final Thoughts
The application of laser welding technology in smartphone manufacturing has greatly improved the processing accuracy and product quality of mobile phone components. By adopting laser welding, mobile phone manufacturers can not only improve production efficiency, but also ensure the perfect inlay and integration of each component, ultimately improving the performance and user experience of the whole machine. In the future, with the continuous development and improvement of laser welding technology, its application in mobile phones and other high-precision manufacturing fields will be more extensive, bringing more innovation and development.
