At present, China's automobile industry is undergoing deep changes, the automobile industry chain is accelerating the transformation to low-carbon, electrification and other directions, especially China's new energy vehicle market penetration rate increases year by year, the new and old kinetic energy accelerated conversion, the old for the new has a huge potential.
In order to further consolidate and expand the advantages of the development of new energy automobile industry, China has promulgated a policy support, decided to extend the new energy automobile vehicle purchase tax reduction and exemption policy to the end of 2027, the reduction and exemption efforts in annual gradual regression, and new energy passenger car vehicle purchase tax reduction and exemption set the limit of tax reduction and exemption. Preliminary estimates, the implementation of the extended policy, 2024-2027 vehicle purchase tax reduction and exemption scale will reach a total of 520 billion yuan.
Facing a huge market and ever-changing demands, not only do they require automobile performance and appearance, but also economy, practicality and environmental protection. This puts forward higher requirements for automobile manufacturing and processing. Traditional processing methods, low efficiency, poor precision, laser processing in response to market demand came into being, widely used in the automotive manufacturing industry.
Laser Welding
Laser welding means that laser radiation heats up the surface of the workpiece to form a molten pool. Therefore, laser welding can automatically join and weld two or more kinds of steel or aluminum materials with different materials, thicknesses and coatings, and then directly press the parts into shape, which can greatly reduce the weight of the body under the premise of guaranteeing the performance of the parts, and at the same time, reduce the processing links and lower the cost of the production line.
Laser splicing welding is a laser welding technology that has been most successfully applied in automobile manufacturing with more obvious benefits. The automotive structural components involved include body side frames, inner door panels, door cover sheet metal, wheel cover panels, floor panels, center pillars, etc.
Laser Deep Melt Welding
Laser deep melting welding uses laser beam as a heat source to heat the metal base material, causing it to rapidly vaporize and form small holes, the formed holes can quickly absorb the heat intake from the outside world, when the heat is transferred from the high-temperature holes to the outer wall, the metal close to the outer wall will be rapidly melted, and the molten metal fills in the gap after the flow of the holes and cools down to form the weld seam.
Laser brazing
Laser brazing principle is similar to ordinary brazing welding process, but there are differences, laser brazing heat source for the laser, the laser acts on the surface of the wire, the wire will melt, and then use the robot to pull the wire, will be infiltrated to the weld, complete the welding process of laser brazing.
Laser welding, laser deep melting welding, laser brazing all belong to the category of laser welding technology, but each is different in principle, application and characteristics. When choosing a suitable welding method, it is necessary to consider the nature of the material, production requirements and costs.
Industry application
For the field of metal welding, suitable for handheld laser galvanometer welding occasions. Mainly used for aluminum, iron, stainless steel, copper, carbon steel and other metal materials of the same kind of welding, or aluminum and copper, stainless steel and copper and other materials mixed welding.
Laser cutting
Laser cutting is a cutting technology based on the laser principle, which uses a high-energy laser beam focused on a very small area to heat the material to be cut to melt or vaporize, and finally use high-pressure airflow to discharge the melted or vaporized material from the processing area.
With the continuous development of the automobile manufacturing industry, laser cutting machine plays an increasingly important role in the automobile manufacturing process with its high precision, high speed and high efficiency.
Engine Components
Laser cutting can be used to manufacture automobile engine parts, such as cylinder head, cylinder block, crankshaft, camshaft and so on.
Automotive Interior
Automotive interiors such as seats, door panels, center console, etc. can be processed with laser equipment, and can also be personalized according to customer needs.
Automotive Wheel Hubs
Fine processing and pattern engraving on the surface of wheel hubs can be realized by laser cutting.
Industry application
Suitable for sheet metal, automobile parts, craft gifts, decorative advertising, kitchenware and other industries cutting metal materials.
Laser Marking
Laser marking is the use of high energy density laser on the workpiece for local irradiation, so that the surface material vaporization or color changes in the chemical reaction, thus leaving a permanent marking method, do not need to contact the surface of the processed items, so you can mark any shaped surface materials, and the workpiece will not be deformed and produce internal stress. This is undoubtedly the best marking solution for the automotive industry in pursuit of efficiency and quality.
The main applications of laser marking in the automotive industry include the marking of automotive parts, engines, label paper (flexible labels), etc. Among them, laser barcodes and 2D codes are commonly used for automotive parts traceability, which not only meets the requirements of the defective product recall system of the whole vehicle, but also realizes the collection of information on the parts and the quality traceability, which has an important and special significance for the automotive manufacturing industry nowadays.
Industry Applications
With CO2 laser: suitable for marking wood, leather, plastic and paper materials.
With fiber laser: suitable for surface marking of stainless steel, aluminum oxide, copper and other alloy materials, such as hand jewelry marking, metal marking, electronic components marking, battery marking, charger marking, switch marking and so on.
With ultraviolet laser: commonly used in the electronics industry precision marking, such as plastic, PVC, circuit boards, cables, chips, LCD screens, glass, food packaging, etc..
With the continuous progress and popularization of laser technology, people's functional demand for laser technology has also increased, and its importance in the field of automobile manufacturing has been self-evident.
