Manufacturing process of welded ship stem structure

Abstract

The invention provides a manufacturing process of a welded ship stem structure. The manufacturing process of the welded ship stem structure is characterized by comprising the following steps of: stepone, firstly dividing an outer plate of a ship stem post into small unit blocks with uniaxial cylindrical surfaces; step two, using steel plates to blank the small unit blocks subjected to rail pressure and distortion correction by flame; and step three, welding and assembling the small unit blocks according to the original shape of the ship stem post. A stem post processing sample box is adjustedto the size of a sample plate to be processed. A welding wire of carbon dioxide gas arc welding is used as a welding material. The manufacturing process has the advantages that the manufacturing process of the welded ship stem structure has simple process principle and saves materials, the transportation and installation are convenient, the cost is low, the requirements on the welding technologyare low, and the carbon dioxide gas welding is used to protect the environment.

Description

technical field [0001] The invention relates to a method for manufacturing a bow of a ship, belongs to the field of ship manufacturing in transportation, and in particular provides a manufacturing process for a welded bow structure of a ship. Background technique [0002] The bow of the ship is a bulbous nose structure, which is a structural design used by large ships to reduce the resistance brought by the wave system. However, due to the large change in shape, it needs to be processed and manufactured by casting steel, and then welded and assembled with the hull after manufacture. First of all, this manufacturing method takes a long time to manufacture, has a low yield, poor safety, and is difficult to modify after the product is produced. The casting process is complicated and the production cost is high. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned many technical problems, and especially provides a manufacturin...

AI Technical Summary

Problems solved by technology

[0002] The bow of the ship is a bulbous nose structure, which is a structural design used by large ships to reduce the resistance brought by the wave system. However, due to the large change in shape, it needs to be processed and manufactured by casting steel, and then welded and assembled with the hull after manufacture. First of all, this manufacturing method takes a long time to manufacture, the yield is low, the safety is poor, it is difficult to modify after the product is produced, the casting process is complicated, and the production cost is high.