A car is assembled by about 20,000 parts, of which iron parts account for the vast majority, although collectively referred to as iron, but constitute the frame of the car body frame and shaping the body of the model part of the use of steel, transmission and other box part of the use of iron melted and injected into the mold made of castings. Therefore, the welding process is an indispensable process in automobile production and processing, such as the frame, body, compartment, engine, car gears, roof, doors, car seat sliding parts, automobile airbag liner, exhaust pipe, automobile clutch and so on are inseparable from the welding technology.
Compared with the traditional resistance welding, carbon dioxide gas shielded welding and other traditional welding technology, laser welding technology in the new alloy materials with superior results. It has the advantages of fast welding speed, good quality, high productivity, weld depth and width ratio, bright and beautiful, heat input is small, welding heat-affected zone is small, welding is not easy to deformation, etc., so that its processing of automotive parts and components with efficiency, economy, safety, strength, high corrosion, and other good performance, to achieve the automotive parts of the splicing and welding, welding, welding, welding, and welding of the parts of the body, and effectively reduce the weight of the body to improve the precision of body assembly It can effectively reduce the weight of car body, improve the precision of car body assembly, increase the strength of car body, and reduce the cost of stamping and assembly in the process of car body manufacturing. With the exploration in the field of laser welding, Lianweng Laser applies advanced laser flight welding, laser filler welding, WOBBLE welding, multi-wavelength blue light composite welding technology and multi-wavelength blue light oscillating composite welding technology to automobile engine exhaust manifolds, cylinder gaskets, high-pressure manifolds, oxygen sensors, transmission forks, half-shell assemblies, automobile steering system steering brackets, guide tubes, steering wheel assemblies, etc. In the automobile parts, Lianweng Laser is able to provide a complete solution by cooperating with modern automobile manufacturers and suppliers. Automobile parts, through the perfect combination with modern automobile manufacturing, for the future development of automobile lightweight to provide more high-quality solutions.
Advantageous features of laser welding equipment:
Laser welding equipment adopts industrial PLC control; integrated automation marking, oiling, riveting, welding, testing and other processes, to achieve integrated line production; the use of imported smoke purifiers, the welding process of smoke and dust and spatter absorbed into the purifier internal filtration, to ensure that the health of the operating personnel; the room body of the fully enclosed welding, see-through windows to observe, and all the maintenance of the door and the device is interlocked (i.e., during the normal working period, open the All maintenance doors are interlocked with the equipment (i.e., during normal operation, the equipment will stop automatically after opening), which ensures the safety of the operators in all aspects; the CCD image automatic monitoring system facilitates real-time observation of the welding condition; the 2-axis displacement machine is used for real-time displacement, which can adjust the angle quickly, and the vibration mirror is welded; the fixtures adopt the quick-changing device, which can realize the fast switching of the artificial piece and the fixed welding position to achieve the high speed of the production beat.
Laser welding of automobile seat back plate
Laser flight welding efficiency, the robot often need to wait for manual on the pieces, the beat is not high; laser welding safety level requirements are high, the need for radiation protection, rotary table mechanism of the movement of the edge of the protection of the difficulties; laser welding needs to ensure that the gap is very small, the workpiece gap to ensure the difficulties.
The laser welding machine with multiple rotary table stations reduces the loading and unloading beats, improves the utilization rate of laser welding, and increases the beats; the edges of the rotary table protection plate adopt the circular arc type surface to form a good protection effect; the dense workpiece design is adopted, and sufficient pressure blocks are added near the weld seams to ensure sufficient compression force to eliminate the gap between the workpieces.
Automotive exhaust manifold welding workstation
Accelerated upgrading of automotive manufacturing, laser welding application trend
Automotive parts welding using high power laser welding instead of other welding methods, parts welding deformation is very small, high precision connection, welding speed, high strength connection, and does not require post-welding heat treatment. At present, the win-win laser has been with a number of automobile manufacturers and auto parts manufacturers have good cooperation. According to the national "Energy Saving and New Energy Vehicle Technology Roadmap", the weight reduction in 2025 will be 20% compared to 2015, and 35% in 2030 compared to 2015.
Automobile lightweight is the future of China's automobile industry sustained and healthy development of the inevitable choice, laser welding as energy-saving cars and new energy vehicles common core technology, lightweight there is a huge market space. In addition, the use of laser welding can also save automotive production costs and improve production efficiency. With the expansion of the global automotive market demand, in the process of accelerating automotive intelligence, the combination of advanced laser processing technology and automotive production has become a general trend. In the future, as the demand for automobiles, especially new energy vehicles, continues to rise, the demand for laser welding in the production line will also continue to rise, the market space is vast.
