How was a car born?

In general, it has to go through the "baptism" of four automobile processes, namely stamping, welding, painting and final assembly. Welding can be said to be the most important step, turning scattered steel plate parts into formed body.

In everyone's cognition, does the impression of automobile welding still stay in the workers wearing protective masks, holding machines and splashing sparks? Because the key word of welding is high temperature, sparks emitted after encountering metal splash everywhere under the action of centrifugal force. I often see netizens asking online: do you hurt your eyes by welding? The answer is yes, so a safer, more accurate and more automated production process has always been the direction of the industry.

In an automobile manufacturing factory, the welding workshop is another scene. Recently, in the live broadcast of CCTV finance and economics, the extreme energy factory of automobile manufacturing finally appeared, attracting countless netizens to supervise the work online. Different from the imagined roar of the factory, the production workshops here are quiet and orderly, most of them are robot arms running at high speed, and there are no imagined sparks splashing in the welding workshop. People can't help but wonder, what kind of black technology is used?

The skill of this automobile welding workshop is LSW laser flying welding, which is loved by major automobile manufacturers. This is a new high-efficiency welding technology that has appeared in the domestic and foreign markets in recent years. Compared with the traditional laser welding technology, laser flying welding is a new technology that uses robot to control laser for scanning welding. For multi-point welding, it can greatly improve the production efficiency. It is called Flying welding because its scanning head can carry out welding similar to light scanning through the movement of the scanning mirror without moving the scanning head from a position 500mm away.

The advanced technology of an automobile manufacturing factory is more than this. In addition to laser flying welding, arplas welding is also worth mentioning. This is a new connection technology based on the principle of resistance spot welding, but it adopts a completely different way and parameters from the traditional spot welding technology to realize welding. Its advantage is that it can use the minimum energy input to reach the pulse peak in a very short time, so that the fusion welding between parts can be completed, and the structural strength safety of parts welding can still be fully achieved.

In the general assembly stage before welding, the automobile factory used the open-gate technology provided by Italy Comau. The biggest feature of this technology is flexibility, which can adapt to the mixed production of multiple products. The flexible switching of the total assembly of four models is nothing to mention. High precision operation, combined with 487 welding robots and the glue coating visual inspection system with a glue diameter accuracy of ± 0.5mm, not only strictly controls the quality, but also greatly improves the production efficiency.

In addition, this automobile manufacturing factory has also realized the information tracking of the whole industrial chain. The MES manufacturing execution system adopted by it will collect the production data, equipment data, quality data, material data, etc. of each vehicle, upload them to the industrial big data platform through the interface for processing, and visually track the industrialization data throughout the process, which not only improves the production efficiency, but also ensures the product quality.

Through the live broadcast, the advanced production technology of the automobile manufacturing factory has made us feel the strength of made in China. The super factory represented by this automobile manufacturing factory actively responds to the made in China 2025 strategy and continues to provide consumers with first-class high-end automobile products with quality control with advanced automobile manufacturing technology in the industrial 4.0 era.

About HGTECH: HGTECH is the pioneer and leader of laser industrial application in China, and the authoritative provider of global laser processing solutions. We have comprehensively arranged laser intelligent equipment, measurement and automation production lines, and smart factory construction to provide overall solutions for intelligent manufacturing.