Now the car manufacturing car door wall, bottom plate, column have been applied to the current laser technology, the use of the current laser technology can be different steel plate, aluminum plate cut into different sizes and shapes, and then use laser technology to them according to the specific design needs stitching together. Compared with the previous processing mode, it not only provides the processing efficiency, but also gives a great play to the flexibility of the processing design. The process design is also more lean, and effectively improves the utilization rate of materials.
For the small parts in the automobile manufacturing, not only can use the current laser technology, fine seamless welding, but also can use the laser technology for product information marking, which not only improves the stability and safety of the car, but also can carry on the anti-counterfeiting identification of parts and product tracking.
Automobile manufacturing involves many related industries, is a very huge system engineering, need a series of technology cooperation, the laser technology application in the field of automobile, is just a laser technology application in the field of automobile manufacturing some of the direction, as now laser technology and the deepening of automobile manufacturing industry become attached to, now laser technology application in the field of automobile manufacture has been involved in many industries. Like the fiber laser marking machine, laser welding machine, laser cutting machine, involved in many aspects of automotive manufacturing now, excellent performance advantages, is gradually promoting the rapid development of automotive manufacturing.
1. laser welding
Laser welding has become one of the important means in automobile manufacturing because of its advantages such as high energy density, small deformation, narrow heat affected zone, high welding speed, easy to realize automatic control and no subsequent processing. A car body and chassis consists of hundreds of thousands of parts, how to connect it with rigid has a direct influence on the vehicle body, use laser welding can put almost all the different thickness, brand, type and grade of metal materials together, in raising the production efficiency and quality at the same time also increased the automobile design and the flexibility of material selection.
2. laser cutting
Laser cutting is one of the commonly used laser processing methods, laser cutting types are divided into laser vaporization cutting, laser melting cutting, laser oxygen cutting and laser scratching and control fracture four categories. Compared with the traditional processing methods, laser cutting has a higher cutting quality - cutting width narrow, small heat affected zone, cutting smooth, fast cutting speed, flexible strong - can be arbitrarily cut any shape, a wide range of material adaptability and other advantages. Three - dimensional laser cutting machine is often needed for cutting edge of large automobile overlay parts. In addition, the current automobile manufacturing platform is becoming increasingly fierce, the flexibility of the production line put forward higher requirements, the use of three-dimensional laser cutting in the model after the change of laser processing program, and simple tooling, greatly shorten the construction period, compared to the use of mold manufacturing costs significantly reduced. In addition, the increasing use of high-strength steels in automobiles, such steels after hot forming, the stamping process is no longer suitable, its profile and hole cutting, driving the demand for laser cutting.
3. laser marking
In the production of automobile and parts, the establishment of identity is the basis of quality traceability and recall. It is very important to establish the identity of automobile and parts through marking. Car marking has been used more and more widely for its high efficiency and adaptability. Laser marking is a marking method that uses a high energy density laser to locally irradiate the workpiece to make the surface material vaporize or undergo a chemical reaction of color change, so as to leave a mark. Laser marking features non-contact processing, can mark on any special surface, workpiece will not deform and produce internal stress. Modern car parts are made of a variety of materials, including metal, plastic, glass, ceramic, wood and leather, all of which can be marked with lasers.