With the rapid development of automobile manufacturing industry, people's purchasing demand is gradually changing, especially in the environmental awareness continues to improve today, people for the car's energy saving, environmental protection, safety is increasingly valued. So now the car in the overall design after the construction to fully consider these factors, the widespread use of the current special alloy, to achieve this change in demand. And now the application of high-strength steel and super steel in the automotive field, mainly due to high-strength steel and super steel has a very good stability, to the safety of the car to provide strong protection, while high-strength steel also has the characteristics of light , Can effectively reduce the fuel consumption of cars. The use of the current high-strength steel as the car's shell, its tensile strength can be improved several times, so that it can not affect the body structure of the case to reduce the thickness of the plate, on the other hand, with the previous ordinary steel assembly Many accessories as a different ribs, and now is a shell so no need to install accessories, which not only effectively simplifies the assembly process, but also reduces the cost of production. Now more and more car manufacturers have applied to the structure of high-strength steel has a strong interest, making high-strength steel in the field of automotive manufacturing applications gradually highlight the value of the current car manufacturing gradually towards a new starting point The
Although the high-strength steel in the field of automotive manufacturing has a broad application prospects, but because of the high hardness of high-strength steel, the general processing tool is difficult to process, so in order to effectively use the current high-strength steel, you have to face this one Processing problems. Now with the continuous development of laser technology, the use of laser processing to solve this problem is very convenient, because the laser processing is the use of high-energy density of the laser beam processing, there is no tool wear, so even the hardness of the material, Cutting will not be worn. Especially for this strength up to 1500MPa of steel, almost no other economically viable processing methods can replace laser cutting; of course, in addition to laser cutting no wear, but also has a short installation time, flexible operation, processing speed, high precision, Especially for narrow corners of the contour or small curvature of the curve, it is mechanical cutting unparalleled. At the same time the use of the current laser processing can not only high-strength steel cutting, but also high-strength steel can be welded and marked, such as laser welding machine, laser marking machine, fiber laser marking machine is widely used in high-strength steel processing manufacture. With the development of the automobile manufacturing industry, the current requirements of the automobile manufacturing is also more and more demanding, for some precision components, tolerance requirements of not more than 3mm. If the parts are to be welded and cut, or if the dimensions of each part of the whole body are considered to meet the critical tolerance, the machining error of each part shall be reduced to ± 0.4mm. This is the traditional means of processing, in order to achieve this requirement is not only complicated operation, while the processing rate is difficult to guarantee, but the use of the current laser processing, will be able to fully meet the requirements, because the laser processing using a computer Software control system for precise control, so only need to master the laser power, processing speed and the relationship between the thickness, will be able to meet this demand.
