Application of welding repair technology in manufacturing and maintenance and its economic benefits

During the manufacturing process such as casting, forging or welding, parts may produce defects such as pores, shrinkage holes, cracks, etc. Welding repair technology restores the integrity of parts by introducing filler materials to fill these defects. Taking the shrinkage holes in large steel castings as an example, welding repair technology can effectively prevent the further expansion of defects and prevent parts from being scrapped due to defects.
For parts that have been worn due to long-term use, such as tools in mechanical processing and wear-resistant parts in mining equipment, welding repair technology can be used to repair worn areas. By adding wear-resistant materials to the worn parts for welding repair, the size and performance of the parts can be restored, thereby extending their service life.
In certain specific situations, welding repair technology can be used to enhance the function of parts. For example, in steel structure buildings, adding reinforcement plates to the original beams or columns through welding repair can improve the bearing capacity of the structure.
When the product design changes, welding repair technology can be used to modify existing parts. For example, in the process of modifying automobile parts, new structures or components can be added to the original parts through welding repair technology to meet new design requirements.
For some large, complex or expensive parts, if they are directly scrapped after local defects occur, it will lead to huge cost waste. Welding repair technology can repair these defects to a certain extent, so that the parts can continue to be used, thus saving material costs and production costs. For example, if a large ship propeller has local damage, welding repair technology can avoid remanufacturing the entire propeller, significantly reducing maintenance costs.