Application of laser cutting machine in shipbuilding industry

The continuous development of shipbuilding technology has brought about major changes in shipbuilding materials and ship design. The application of laser technology in shipbuilding has its uniqueness, which is closely related to the processing and application characteristics of the ship itself and the characteristics of the laser manufacturing system. So, what are the specific applications of lasers in ships? In recent years, 'precision shipbuilding' and 'fast shipbuilding' have become the main trends in the development of the shipbuilding industry. Laser cutting machine technology has developed rapidly, accounting for more than 70% of the entire laser processing industry. The shipbuilding industry is mainly based on steel plate raw materials. The use of laser cutting plates can replace some of the punching processing methods that require the use of complex and large molds, greatly shortening the production cycle and reducing costs. After the laser cutting machine is used for blanking, the assembly margin is eliminated, the phenomenon of on-site repair and cutting is eliminated, the labor and material waste are reduced, the frame assembly speed is significantly accelerated, and the assembly quality is significantly improved. At present, the blanking methods of hull plate parts in the shipbuilding industry mainly adopt flame cutting, plasma cutting, shear processing and laser cutting. Compared with laser cutting, other cutting methods have many shortcomings. In the field of shipbuilding, laser cutting avoids the need to set a trimming allowance on the ribs to ensure the assembly gap when the plasma is blanking the ribs, and the trimming is performed manually, resulting in uneven trimming quality. occur. Thereby reducing assembly workload, assembly cycle, waste of materials and labor costs. The marine steel plate cut by laser has good cutting seam quality, good verticality of the cut surface, no slag, thin oxide layer, smooth surface, no secondary processing, direct welding, small thermal deformation, high curve cutting accuracy, and reduced coordination Working hours, to achieve barrier-free cutting of high-strength ship plates. In the domestic shipbuilding industry, laser cutting does not occupy a dominant position. The main reasons include: ①Laser cutting costs are higher than traditional cutting methods; ②Large-scale laser cutting equipment is not suitable for the manufacturing characteristics of the shipbuilding industry, such as on-site construction, block operation, The working environment is complicated, etc.; ③There is no obvious advantage in cutting efficiency, especially the thick plate cutting in the shipbuilding industry; ④The maintenance of laser equipment is complicated, which requires high workers and high costs. In view of the special requirements of the cutting machine for ship outfitting work and the diversity of the shape of the profiles used in the hull structure, the current situation of the industry is based on the current situation of the industry.