Views: 0 Author: HanTenCNC Publish Time: 2022-02-06 Origin: Site
The advantages of laser welding technology in aluminum alloys, magnesium alloys, copper alloys, nickel alloys, titanium alloys and other metal materials have gradually replaced traditional welding processes and accelerated the use of laser welding in batteries, bathrooms, new energy vehicles and their spare parts, hardware, and jewelry. The application layout of jewelry, 3C and other fields, while in recent years
The maturity and breakthrough of technologies such as laser soldering and laser plastic welding will further expand laser application scenarios, such as communication electronics, medical equipment, automotive electronics and sensors.
First of all, in terms of efficiency, laser welding is 2-10 times faster than traditional welding. Because the laser welding machine equipment adopts the processing principle of laser beam irradiation, the processing speed is very fast and the penetration depth is relatively deep.
Secondly, in terms of quality, laser welding is better. Due to the small heat-affected area during welding, the workpiece has no deformation, no welding scars, the welding is firm, smooth and beautiful, and the subsequent grinding process is reduced, and the welding yield is high. And can deal with stainless steel plate, iron plate, galvanized plate and other metal materials can be welded, can be welded to each other various heterogeneous materials.
In addition, it has high operability (low manual technology content), easy to automate, and is safe and environmentally friendly. Say goodbye to wearing insulating shoes and thick gloves, while holding a protective mask and heavy welding tongs while operating, sparks are scattered. Traditional welding site.
Marking, cutting and welding are the three most important applications in laser processing. Among them, laser marking and cutting started early, but in recent years, with the rise of new energy vehicles, the downstream power battery industry has flourished, and the demand for automated welding equipment The rapid growth in volume has driven the development of the laser welding industry.
However, its development speed is not as fast as that in the field of fiber cutting and marking, which involves the biggest feature of laser welding equipment: high degree of customization, customer demand for products is greatly differentiated, and it is difficult to achieve large-scale mass production—— Different products, different application scenarios, different strength requirements, the requirements of the technology and fixtures used are different, and almost every application requirement requires customized products.
After years of development, laser technology is widely understood, and people's recognition of it has increased, which has promoted the application of laser technology. At present, laser welding equipment can be divided into laser composite heat source welding equipment for structures with medium thickness and above, laser welding equipment for thin metal materials; laser welding equipment for high-reflection and low-absorbing materials; precision laser welding equipment for transparent materials, etc.
At present, laser welding is used in the automotive industry (such as laser tailor welding of unequal thickness plates, laser welding of body assemblies and sub-assemblies, auto parts) and power battery industry (such as explosion-proof valve sealing welding, tab welding, flexible connection The application process of welding, helmet spot welding, battery shell sealing welding, module and PACK welding, etc.) is relatively mature.
At the same time, laser welding technology has gradually been widely used in the manufacture of aerospace equipment, especially the manufacture of weapons and aircraft, aircraft skin splicing, skin, long-form welding, thin-walled parts manufacturing, fuselage accessories assembly, etc., laser welding Welding technology is indispensable. The application of laser welding technology improves the structural performance of the aircraft and reduces the quality of the substrate.
In addition, to meet the needs of lightweight development of ships, laser welding technology was introduced into the shipbuilding industry, and quickly replaced traditional welding technology, improving welding efficiency and quality. Whether it is welding from thin plates to medium and thick plates, or the penetration of new materials and new applications, there are too many technologies in the field of laser welding to be studied, and there is still a huge room for improvement in the application penetration rate in the manufacturing industry. Still in the future.
Under the current epidemic situation and complex international situation, the industrial structure is being upgraded and adjusted step by step. In the face of 5G upgrading the manufacturing industry, new infrastructure and future technological breakthroughs and upgrades such as intelligent equipment, intelligent factories and intelligent products have brought about With new opportunities and challenges, we should keep up with the pace of changes in market demand, expand exchanges and cooperation, and seek development opportunities brought by new industries and new technologies.