Welding Process Analysis of S45C Steel and S235 Steel
S45C steel is a kind of very high quality carbon structural steel with good performance and process performance. S45C steel square bar is widely used in the machinery industry and is mainly used as mechanical parts such as shafts, gears and high strength bolts. S45C steel square bar is a kind of carbon structural steel with carbon content of 0.45%. S45C steel square bar belongs to medium carbon steel, and its mechanical properties are high in strength but poor in toughness. S45C steel square bar has less harmful impurities and non-metallic inclusions, stricter chemical composition control, better plasticity and toughness. S45C steel square bar is suitable for the manufacture of more important mechanical parts. S235 is a kind of common structural steel, belonging to engineering steel, mainly used for steel components, such as angle steel, channel steel, I-beam, steel plate and so on. S45C steel and S235 steel have good metal properties and a wide range of applications. The analysis of S45C steel and S235 welding processes and their weldability is of great significance in welding production. As a kind of medium carbon steel, S45C steel square bar has poor weldability and is prone to defects during the welding process. S235 steel has good welding performance because S235 steel is structural steel, which belongs to engineering steel and has low carbon content and it is a kind of good welding base material.
The right process is the basic condition for quality assurance. Carbon dioxide gas shielded welding is an important welding method. Compared with other arc welding methods, it has stronger adaptability, higher efficiency, better economy and easier access to welded joints that meet the performance requirements. The carbon dioxide gas protection welding of S45C steel and S235 has strict environmental requirements, and it is required to be carried out in a windless environment. Once there is wind, there will be defects of pores, and although the speed of carbon dioxide gas protection welding is relatively fast, the welder’s level of operation is high. According to the chemical composition analysis of the base material S45C steel and S235 steel, the carbon equivalent of S45C steel is 0.63% from the viewpoint of carbon equivalent. The carbon equivalent is relatively large and the weldability is relatively poor. In order to avoid cracks after welding, it is necessary to preheat 250 °C before welding and 550 °C stress relief annealing after welding is also quite necessary. S235 has good weldability, but due to the characteristics of dissimilar steel welding, it is necessary to formulate welding process parameters according to S45C steel with poor weldability. The hardness distribution of the welded joint is as follows. The hardness of the heat-affected zone varies widely, and the hardness value is high. In particular, the fusion line has a high hardness value due to elemental diffusion, and the hardness distribution of the weld is relatively uniform.
S45C steel is a kind of very high quality carbon structural steel with good performance and process performance. S45C steel square bar is widely used in the machinery industry and is mainly used as mechanical parts such as shafts, gears and high strength bolts. S45C steel square bar is a kind of carbon structural steel with carbon content of 0.45%. S45C steel square bar belongs to medium carbon steel, and its mechanical properties are high in strength but poor in toughness. S45C steel square bar has less harmful impurities and non-metallic inclusions, stricter chemical composition control, better plasticity and toughness. S45C steel square bar is suitable for the manufacture of more important mechanical parts. S235 is a kind of common structural steel, belonging to engineering steel, mainly used for steel components, such as angle steel, channel steel, I-beam, steel plate and so on. S45C steel and S235 steel have good metal properties and a wide range of applications. The analysis of S45C steel and S235 welding processes and their weldability is of great significance in welding production. As a kind of medium carbon steel, S45C steel square bar has poor weldability and is prone to defects during the welding process. S235 steel has good welding performance because S235 steel is structural steel, which belongs to engineering steel and has low carbon content and it is a kind of good welding base material.
The right process is the basic condition for quality assurance. Carbon dioxide gas shielded welding is an important welding method. Compared with other arc welding methods, it has stronger adaptability, higher efficiency, better economy and easier access to welded joints that meet the performance requirements. The carbon dioxide gas protection welding of S45C steel and S235 has strict environmental requirements, and it is required to be carried out in a windless environment. Once there is wind, there will be defects of pores, and although the speed of carbon dioxide gas protection welding is relatively fast, the welder’s level of operation is high. According to the chemical composition analysis of the base material S45C steel and S235 steel, the carbon equivalent of S45C steel is 0.63% from the viewpoint of carbon equivalent. The carbon equivalent is relatively large and the weldability is relatively poor. In order to avoid cracks after welding, it is necessary to preheat 250 °C before welding and 550 °C stress relief annealing after welding is also quite necessary. S235 has good weldability, but due to the characteristics of dissimilar steel welding, it is necessary to formulate welding process parameters according to S45C steel with poor weldability. The hardness distribution of the welded joint is as follows. The hardness of the heat-affected zone varies widely, and the hardness value is high. In particular, the fusion line has a high hardness value due to elemental diffusion, and the hardness distribution of the weld is relatively uniform.
Comments
Post a Comment